Powered by Deep Web Technologies
Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

latitutde tilt irradiance | OpenEI  

Open Energy Info (EERE)

latitutde tilt irradiance latitutde tilt irradiance Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Bangladesh. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Source NREL Date Released April 12th, 2005 (9 years ago) Date Updated November 01st, 2007 (7 years ago) Keywords atmospheric water vapor GEF GIS latitutde tilt irradiance NREL solar SWERA TILT UNEP Data text/csv icon Download Data (csv, 35.5 KiB) application/zip icon Download Shapefile (zip, 26.7 KiB) Quality Metrics

2

ASHMET: a computer code for estimating insolation incident on tilted surfaces  

SciTech Connect

A computer code, ASHMET, has been developed by MSFC to estimate the amount of solar insolation incident on the surfaces of solar collectors. Both tracking and fixed-position collectors have been included. Climatological data for 248 US locations are built into the code. This report describes the methodology of the code, and its input and output. The basic methodology used by ASHMET is the ASHRAE clear-day insolation relationships modified by a clearness index derived from SOLMET-measured solar radiation data to a horizontal surface.

Elkin, R.F.; Toelle, R.G.

1980-05-01T23:59:59.000Z

3

insolation | OpenEI  

Open Energy Info (EERE)

2 2 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278432 Varnish cache server insolation Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Asia DNI GEF GHI insolation NREL solar SWERA TILT UNEP Data application/zip icon Download Shapefile and Cell Regions (zip, 20.2 MiB) text/csv icon Download Data (csv, 960.7 KiB)

4

Insolation integrator  

DOE Patents (OSTI)

An electric signal representative of the rate of insolation is integrated to determine if it is adequate for operation of a solar energy collection system.

Dougherty, John J. (Norristown, PA); Rudge, George T. (Lansdale, PA)

1980-01-01T23:59:59.000Z

5

Definition: Insolation | Open Energy Information  

Open Energy Info (EERE)

Insolation Insolation Jump to: navigation, search Dictionary.png Insolation The solar power density incident on a surface of stated area and orientation, usually expressed as Watts per square meter or Btu per square foot per hour.[1] View on Wikipedia Wikipedia Definition Insolation is a measure of solar radiation energy received on a given surface area and recorded during a given time. It is also called solar irradiation and expressed as "hourly irradiation" if recorded during an hour or "daily irradiation" if recorded during a day. The unit recommended by the World Meteorological Organization is megajoules per square metre (MJ/m) or joules per square millimetre (J/mm) . An alternate unit of measure is the Langley (1 thermochemical calorie per square

6

latitude tilt | OpenEI  

Open Energy Info (EERE)

latitude tilt latitude tilt Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Source U.S. National Renewable Energy Laboratory (NREL) Date Released April 12th, 2005 (9 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords atmospheric water vapor GIS latitude tilt Nepal NREL solar SWERA TILT UNEP Data application/zip icon Download Shapefile (zip, 25.6 KiB) text/csv icon Download Data (csv, 36.2 KiB)

7

Photovoltaic Potential and Insolation Maps (Canada) | Open Energy  

Open Energy Info (EERE)

Photovoltaic Potential and Insolation Maps (Canada) Photovoltaic Potential and Insolation Maps (Canada) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaic Potential and Insolation Maps (Canada) Focus Area: Renewable Energy Topics: Potentials & Scenarios Website: glfc.cfsnet.nfis.org/mapserver/pv/pvmapper.phtml?LAYERS=2700,2701,2057 Equivalent URI: cleanenergysolutions.org/content/photovoltaic-potential-and-insolation Language: English Policies: Regulations Regulations: Net Metering & Interconnection These interactive maps give estimates of the electricity that can be generated by grid-connected photovoltaic (PV) arrays without batteries and of the mean daily global insolation for any location in Canada. Insolation data was provided by the Data Analysis and Archive Division, Meteorological

8

Site insolation and wind power characteristics: technical report Midwest region  

SciTech Connect

This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Midwest Region of the US Historic data (SOLMET), at 22 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation is related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal. Also, joint probability distribution tables are constructed showing the number of occurrences, out of a finite sample size, of daily average solar and wind power within selected intervals, by month. Information of this nature is intended as an aid to preliminary planning activities for the design and operation of solar and wind energy utilization and conversion systems.

None

1980-08-01T23:59:59.000Z

9

direct normal irradiance | OpenEI  

Open Energy Info (EERE)

normal irradiance normal irradiance Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords direct normal irradiance DNI GEF GHI GIS global horizontal irradiance insolation latitutde tilt irradiance NASA NREL South America SWERA TILT UNEP Data application/zip icon Download Shapefile and Cell Maps (zip, 13.9 MiB) text/csv icon Download Data (csv, 3.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

10

Insolation data manual and direct normal solar radiation data manual  

SciTech Connect

The Insolation Data Manual presents monthly averaged data which describes the availability of solar radiation at 248 National Weather Service (NWS) stations, principally in the United States. Monthly and annual average daily insolation and temperature values have been computed from a base of 24--25 years of data, generally from 1952--1975, and listed for each location. Insolation values represent monthly average daily totals of global radiation on a horizontal surface and are depicted using the three units of measurement: kJ/m{sup 2} per day, Btu/ft{sup 2} per day and langleys per day. Average daily maximum, minimum and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3 C (65 F). For each station, global {bar K}{sub T} (cloudiness index) values were calculated on a monthly and annual basis. Global {bar K}{sub T} is an index of cloudiness and indicates fractional transmittance of horizontal radiation, from the top of the atmosphere to the earth's surface. The second section of this volume presents long-term monthly and annual averages of direct normal solar radiation for 235 NWS stations, including a discussion of the basic derivation process. This effort is in response to a generally recognized need for reliable direct normal data and the recent availability of 23 years of hourly averages for 235 stations. The relative inaccessibility of these data on microfiche further justifies reproducing at least the long-term averages in a useful format. In addition to a definition of terms and an overview of the ADIPA model, a discussion of model validation results is presented.

none,

1990-07-01T23:59:59.000Z

11

Site insolation and wind power characteristics, technical report northeast region. Vol. 2  

SciTech Connect

This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Northeast Region of the US Historic data (SOLMET), at 8 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation are related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal.

None

1980-08-01T23:59:59.000Z

12

TILT | OpenEI  

Open Energy Info (EERE)

TILT TILT Dataset Summary Description Developed by NREL and the U.S. Trade and Development Agency, this geographic toolkit that allows users to relate the renewable energy resource (solar and wind) data to other geographic data, such as land use, protected areas, elevation, etc. The GsT was completely redesigned and re-released in November 2010 to provide a more modern, easier-to-use interface with considerably faster analytical querying capabilities. The revised version of the Geospatial Toolkit for Turkey is available using the following link: http://www.nrel.gov/international/downloads/gst_turkey.exe Source GeoModel Date Released March 31st, 2009 (5 years ago) Date Updated July 06th, 2012 (2 years ago) Keywords DNI GeoModel GHI GIS GsT NREL solar SWERA TILT

13

Africa | OpenEI  

Open Energy Info (EERE)

Africa Africa Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. Source U.S. National Renewable Energy Laboratory (NREL) Date Released July 31st, 2011 (3 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Africa direct normal irradiance DNI GEF GHI GIS global horizontal irradiance latitutde tilt irradiance NASA NREL solar SWERA TILT UNEP Data application/zip icon Download Shapefile and Images (zip, 19.3 MiB) text/csv icon Download Data (csv, 3.4 MiB) Quality Metrics Level of Review Some Review

14

Solar: monthly latitude tilt GIS data at 40km resolution for Bangladesh  

Open Energy Info (EERE)

latitude tilt GIS data at 40km resolution for Bangladesh latitude tilt GIS data at 40km resolution for Bangladesh from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Bangladesh. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The

15

Solar: monthly and annual latitude tilt horizontal GIS data at 40km  

Open Energy Info (EERE)

latitude tilt horizontal GIS data at 40km latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The

16

Effects of the Mount Pinatubo eruption on solar insolation: Four case studies  

SciTech Connect

The Southwest Technology Development Institute staff analyzed solar insolation data from four sites recorded during the years 1990 through 1992. Analyses were performed to identify and quantify the effects on insolation caused by the eruption of Mount Pinatubo in the Philippines on June 15th and 16th, 1991. The four monitoring stations that supplied the raw data for this report were: The Southwest Region Experiment Station in Las Cruces, New Mexico; The Solar Radiation Research Laboratory at the National Renewable Energy Laboratory in Golden, Colorado; The Solar Insolation Monitor Program station operated by the Pacific Gas and Electric Company in Carrisa Plains, California; and The Solar Insolation monitor station at Sandia National Laboratories in Albuquerque, New Mexico. Data from each of the sites were recorded by dedicated datalogging equipment. Every effort was made to prevent data acquisition system problems (e.g., drift of the datalogger clock) from influencing the accuracy of the results.

Rosenthal, A.L.; Robert, J.M. [New Mexico State Univ., Las Cruces, NM (United States). Southwest Technology Development Inst.

1993-05-01T23:59:59.000Z

17

Safety Shoe and Insole Reimbursement Form Requisitioner: -Submit to supervisor for signature  

E-Print Network (OSTI)

Safety Shoe and Insole Reimbursement Form Requisitioner: - Submit to supervisor for signature. _________________________________________________ POSITION ____________________________________________________________________ DID YOU PURCHASE SAFETY TOES Safety Shoes or other footwear under the provisions outlined in the Collective Agreement

Sinnamon, Gordon J.

18

Site insolation and wind power characteristics: technical report western region (south section)  

SciTech Connect

This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Western Region (South Section) of the US Historic data (SOLMET), at 22 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation is related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal. Also, joint probability distribution tables are constructed showing the number of occurrences, out of a finite sample size, of daily average solar and wind power within selected intervals, by month. Information of this nature is intended as an aid to preliminary planning activities for the design and operation of solar and wind energy utilization and conversion systems.

None

1980-08-01T23:59:59.000Z

19

Site insolation and wind power characteristics: technical report western region (north section)  

SciTech Connect

This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Western Region (North Section) of the US Historic data (SOLMET), at 21 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation is related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal. Also, joint probability distribution tables are constructed showing the number of occurrences, out of a finite sample size, of daily average solar and wind power within selected intervals, by month. Information of this nature is intended as an aid to preliminary planning activities for the design and operation of solar and wind energy utilization and conversion systems.

None

1980-08-01T23:59:59.000Z

20

Radiation Incident on Tilted Collectors  

Science Journals Connector (OSTI)

For solar energy system design purposes, observations of solar radiation on a horizontal surface must be converted to values on a tilted energy collector. An empirical conversion relationship, introduced by Liu and Jordan (1960) and based on ...

P. J. Robinson

1981-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

BEAM TILTED CORRELATIONS Frank Vignola  

E-Print Network (OSTI)

from tilted solar radiance. This model will then be used to estimate the performance of a photovoltaic. INTRODUCTION The number and variety of grid-tied photovoltaic (PV) systems being installed is stimulating, wind speed, and other meteorological variables and weather conditions. With the variety of solar cell

Oregon, University of

22

Insolation-oriented model of photovoltaic module using Matlab/Simulink  

SciTech Connect

This paper presents a novel model of photovoltaic (PV) module which is implemented and analyzed using Matlab/Simulink software package. Taking the effect of sunlight irradiance on the cell temperature, the proposed model takes ambient temperature as reference input and uses the solar insolation as a unique varying parameter. The cell temperature is then explicitly affected by the sunlight intensity. The output current and power characteristics are simulated and analyzed using the proposed PV model. The model verification has been confirmed through an experimental measurement. The impact of solar irradiation on cell temperature makes the output characteristic more practical. In addition, the insolation-oriented PV model enables the dynamics of PV power system to be analyzed and optimized more easily by applying the environmental parameters of ambient temperature and solar irradiance. (author)

Tsai, Huan-Liang [Electrical Engineering Department, Da-Yeh University, No. 168, University Rd., Dah-Tsuen, Chang-Hua, 51591 Taiwan (China)

2010-07-15T23:59:59.000Z

23

Solar: monthly and annual average latitude tilt GIS data at 40km resolution  

Open Energy Info (EERE)

China from NREL China from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations

24

Solar: monthly and annual average latitude tilt GIS data at 40km resolution  

Open Energy Info (EERE)

Ghana from NREL Ghana from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Ghana. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to

25

Solar: monthly and annual average latitude tilt GIS data at 40km resolution  

Open Energy Info (EERE)

Mexico, Central America, and the Caribbean Islands from NREL Mexico, Central America, and the Caribbean Islands from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The

26

Large optics inspection, tilting, and washing stand  

DOE Patents (OSTI)

A large optics stand provides a risk free means of safely tilting large optics with ease and a method of safely tilting large optics with ease. The optics are supported in the horizontal position by pads. In the vertical plane the optics are supported by saddles that evenly distribute the optics weight over a large area.

Ayers, Marion Jay (Brentwood, CA); Ayers, Shannon Lee (Brentwood, CA)

2010-08-24T23:59:59.000Z

27

Tilt display demonstration: a display surface with multi-axis tilt & actuation  

Science Journals Connector (OSTI)

This demonstration accompanies a full paper accepted into MobileHCI '12 [1]. We demonstrate a new type of actuatable display, called a Tilt Display, that provides visual feedback combined with multi-axis tilting and vertical actuation. Its ability to ... Keywords: actuated displays, nonplanar surface interaction, physical actuation, tilt displays

Jason Alexander; Andrés Lucero; Sriram Subramanian

2012-09-01T23:59:59.000Z

28

Tilt displays: designing display surfaces with multi-axis tilting and actuation  

Science Journals Connector (OSTI)

We present a new type of actuatable display, called Tilt Displays, that provide visual feedback combined with multi-axis tilting and vertical actuation. Their ability to physically mutate provides users with an additional information channel that facilitates ... Keywords: actuated displays, non-planar surface interaction, physical actuation, tilt displays

Jason Alexander; Andrés Lucero; Sriram Subramanian

2012-09-01T23:59:59.000Z

29

GEF. latitude tilt | OpenEI  

Open Energy Info (EERE)

GEF. latitude tilt GEF. latitude tilt Dataset Summary Description (Abstract): Latitude tilted solar radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders Source INPE (National Institute for Spatial Research) and LABSOLAR (Laboratory of Solar Energy/Federal University of Santa Catarina) - Brazil Date Released August 08th, 2009 (5 years ago) Date Updated August 08th, 2009 (5 years ago) Keywords Brazil GEF. latitude tilt INPE LABSOLAR solar SWERA TILT UNEP Data application/zip icon Download Shapefile (zip, 706.1 KiB) text/csv icon Download Data (csv, 999.1 KiB) Quality Metrics Level of Review Some Review

30

Experimental control of the spheromak tilting instability  

Science Journals Connector (OSTI)

The magnetohydrodynamic (MHD) tilting instability of the spheromak configuration has been experimentally investigated by recording the time evolution of the magnetic field with small magnetic probes. Passive coil systems such as the figure?eight and saddle coils have been proven experimentally effective against this instability.

C. Munson; A. Janos; F. Wysocki; M. Yamada

1985-01-01T23:59:59.000Z

31

Stabilization of the spheromak tilt instability  

Science Journals Connector (OSTI)

A stability criterion for the tilt mode of a spheromak?ion ring hybrid configuration has been developed for the case where the ring current is small compared to the spheromak azimuthal current. It is shown that the stability is related to the distortion of the spheromak separatrix.

C. Litwin; R. N. Sudan; A. D. Turnbull

1984-01-01T23:59:59.000Z

32

Combined Scanning Transmission Electron Microscopy Tilt- and Focal Series  

SciTech Connect

In this study, a combined tilt- and focal series is proposed as a new recording scheme for high-angle annular dark-field scanning transmission electron microscopy (STEM) tomography. Three-dimensional (3D) data were acquired by mechanically tilting the specimen, and recording a through-focal series at each tilt direction. The sample was a whole-mount macrophage cell with embedded gold nanoparticles. The tilt focal algebraic reconstruction technique (TF-ART) is introduced as a new algorithm to reconstruct tomograms from such combined tilt- and focal series. The feasibility of TF-ART was demonstrated by 3D reconstruction of the experimental 3D data. The results were compared with a conventional STEM tilt series of a similar sample. The combined tilt- and focal series led to smaller missing wedge artifacts, and a higher axial resolution than obtained for the STEM tilt series, thus improving on one of the main issues of tilt series-based electron tomography.

Dahmen, Tim [German Research Center for Artificial Intelligence (DFKI), Germany] [German Research Center for Artificial Intelligence (DFKI), Germany; Baudoin, Jean-Pierre G [ORNL] [ORNL; Lupini, Andrew R [ORNL] [ORNL; Kubel, Christian [Karlsruhe Institute of Technology, Leopoldshafen, Germany] [Karlsruhe Institute of Technology, Leopoldshafen, Germany; Slusallek, Phillip [German Research Center for Artificial Intelligence (DFKI), Germany] [German Research Center for Artificial Intelligence (DFKI), Germany; De Jonge, Niels [ORNL] [ORNL

2014-01-01T23:59:59.000Z

33

Solar: monthly latitude tilt GIS data at 40km resolution for...  

Open Energy Info (EERE)

of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used...

34

Spheromak tilting instability in cylindrical geometry  

Science Journals Connector (OSTI)

The internal tilting instability in a force?free spheromak plasma in cylindrical geometry is examined. It is found that this instability originally found in spherical geometry also occurs in cylindrical geometry. The analysis proceeds by first demonstrating that if no mode rational surface is present in the plasma a necessary and sufficient condition for ideal magnetohydrodynamic instability is that there exist a solution to ?×B m = ? m B m where B m ?exp(i m?) with ? m tilting mode is unstable for these parameters. All modes with m?1 are shown to be stable.

John M. Finn; Wallace M. Manheimer; Edward Ott

1981-01-01T23:59:59.000Z

35

Tilting instability of a cylindrical spheromak  

Science Journals Connector (OSTI)

The stability of a low?beta spheromak with a perfectly conducting cylindrical boundary of length L and radius R is analyzed in terms of force?free fields with J = ?B(? = const). The axisymmetric equilibrium is found unstable to tilting when the elongation L/R is larger than about 1.67. Numerical solutions of the time?dependent ideal magnetohydrodynamic equations confirm this result.

A. Bondeson; G. Marklin; Z. G. An; H. H. Chen; Y. C. Lee; C. S. Liu

1981-01-01T23:59:59.000Z

36

Stabilizing windings for tilting and shifting modes  

DOE Patents (OSTI)

This invention relates to passive conducting loops for stabilizing a plasma ring against unstable tilting and/or shifting modes. To this end, for example, plasma ring in a spheromak is stabilized by a set of four figure-8 shaped loops having one pair on one side of the plasma and one pair on the other side with each pair comprising two loops whose axes are transverse to each other.

Jardin, Stephen C. (Princeton, NJ); Christensen, Uffe R. (Princeton, NJ)

1984-01-01T23:59:59.000Z

37

Building Energy Software Tools Directory: oTilt  

NLE Websites -- All DOE Office Websites (Extended Search)

oTilt oTilt tool_otilt oTilt is an online tool for quickly determining the optimum tilt angles for solar collectors. Site can be located in an integrated Google map, searching it using keywords (e.g. Central Park, New York) or by directly entering latitude and longitude. oTilt determines the optimum monthly, seasonal, half-yearly and fixed tilt angles for solar collectors at selected site location along with respective energy collection during these spans. Results are presented in the form of a table. Screen Shots Keywords solar radiations, radiations on tilted surface, optimum tilt angle, optimum pitch angle, collector slope Validation/Testing Methodology and validation of results is given on website Expertise Required No special expertise needed. Users More than 100.

38

Analytical investigation of collector optimum tilt angle at low latitude  

Science Journals Connector (OSTI)

An analytical investigation on the optimum tilt angle for solar collectors at low latitude a case study of Universiti Teknologi PETRONAS (UTP) 4.39°N and 100.98°E Malaysia is presented in this work. The study employed Hay Davies Klucher and Reindl (HDKR) anisotropic sky model to evaluate the available hourly solar radiation on inclined surface using the location metrological data. The tilt angles considered were 0° to 30° in step of 3° with the inclusion of the location latitude angle. The study employed the ratio of global solar radiation on tilted surface to the global solar radiation on horizontal surface in the decision of the optimum tilt. The system equations were converted to MATLAB codes to solve for the optimum tilt angles. The results show that the optimum tilt varies monthly but gave zero degree for south facing collector for the months of April to August; thus the investigation also considered north facing orientation for the months of April to September. The optimum annual tilt angle for the location using the tilt to horizontal radiation ratio was found to be equal to the location latitude angle. Using the conventional average of the monthly optimum tilt angles the annual optimum tilt angle was found to be 9.75° for south facing collector. Considering seasonal optimum tilt angle for the location using the tilt to horizontal radiation ratio 18° facing south was found to be the optimum tilt angle for rainy season (September to March) and 15° facing north for dry season (April to August). Employing the average of monthly optimum tilt method the seasonal optimum tilt angle was found to be 17° for rainy season and 12° facing north dry season. The effect of dust on the collector was considered with reference to literature and the annual tilt angle of 15° facing south was recommended for the location in the case of large solar collector that cannot be monthly or seasonally adjusted.

Ogboo Chikere Aja; Hussain H. Al-Kayiem; Zainal Ambri Abdul Karim

2013-01-01T23:59:59.000Z

39

The Influence of Orbital Forcing of Tropical Insolation on the Climate and1 Isotopic Composition of Precipitation in South America2  

E-Print Network (OSTI)

of Precipitation in South America2 Xiaojuan Liu and David S. Battisti3 Department of Atmospheric Sciences-19-2014) of the AMS LATEX template1 #12;ABSTRACT The 18O of calcite (18Oc) in speleothems from South America is well in insolation in changing the climate of South America. Using an isotope-enabled atmospheric general circulation

Battisti, David

40

Geometric Model of a Narrow Tilting CAR using Robotics formalism  

E-Print Network (OSTI)

- structured multibody system composed of n bodies (links) where the chassis is the mobile base and the wheels tilting car "Lumeneo Smera" [4] through the analysis of its tilting mechanism. To model a complex system. Robotic representation of a multibody system The car can be seen as a mobile robot which is a tree

Boyer, Edmond

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Three-Dimensional Simulation of Spheromak Creation and Tilting Disruption  

Science Journals Connector (OSTI)

Spheromak dynamics is studied for a zero-? plasma by a three-dimensional magneto-hydrodynamics simulation code. The growth rate of the tilting instability is found to be of the order of 10?A (Alfvén transit time) and, more interestingly, once tilt occurs, the spheromak field reconnects three dimensionally with the vertical field, thus leading to a disruptive deformation of the spheromak.

Tetsuya Sato and Takaya Hayashi

1983-01-03T23:59:59.000Z

42

File:NREL-asia-tilt.pdf | Open Energy Information  

Open Energy Info (EERE)

asia-tilt.pdf asia-tilt.pdf Jump to: navigation, search File File history File usage Selected Asian Countries - Annual Tilted at Latitude Solar Radiation (PDF) Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 3.05 MB, MIME type: application/pdf) Title Selected Asian Countries - Annual Tilted at Latitude Solar Radiation (PDF) Description Selected Asian Countries - Annual Tilted at Latitude Solar Radiation (PDF) Sources National Renewable Energy Laboratory Authors Donna Heimiller Related Technologies Solar, Solar-PV, Solar-40km Creation Date 2006-07-13 Extent International Countries Bhutan, China, Nepal, Mongolia, India, North Korea, South Korea, Vietnam, Laos, Thailand, Cambodia, Philippines, Bangladesh UN Region Southern Asia, Eastern Asia, South-Eastern Asia

43

Optimum tilt angle and orientation for solar collectors in Syria  

Science Journals Connector (OSTI)

One of the important parameters that affect the performance of a solar collector is its tilt angle with the horizon. This is because of the variation of tilt angle changes the amount of solar radiation reaching the collector surface. A mathematical model was used for estimating the solar radiation on a tilted surface, and to determine the optimum tilt angle and orientation (surface azimuth angle) for the solar collector in the main Syrian zones, on a daily basis, as well as for a specific period. The optimum angle was computed by searching for the values for which the radiation on the collector surface is a maximum for a particular day or a specific period. The results reveal that changing the tilt angle 12 times in a year (i.e. using the monthly optimum tilt angle) maintains approximately the total amount of solar radiation near the maximum value that is found by changing the tilt angle daily to its optimum value. This achieves a yearly gain in solar radiation of approximately 30% more than the case of a solar collector fixed on a horizontal surface.

Kamal Skeiker

2009-01-01T23:59:59.000Z

44

The Properties of the Tilts of Bipolar Solar Regions  

E-Print Network (OSTI)

We investigate various properties associated with the tilt of isolated magnetic bipoles in magnetograms taken at the solar surface. We show that bipoles can be divided into two groups which have tilts of opposite signs, and reveal similar properties with respect to bipole area, flux and bipolar moment. Detailed comparison of these physical quantities shows that the dividing point between the two types of bipoles corresponds to a bipole area of about 300 millionths of the solar hemisphere (MHS). The time-latitude distribution of small bipoles differs substantially from that for large bipoles. Such behaviour in terms of dynamo theory may indicate that small and large bipoles trace different components of the solar magnetic field. The other possible viewpoint is that the difference in tilt data for small and large bipoles is connected with spectral helicity separation, which results in opposite tilts for small and large bipoles. We note that the data available do not provide convincing reasons to prefer either i...

Illarionov, E; Sokoloff, D

2014-01-01T23:59:59.000Z

45

A data mining approach: Analyzing wind speed and insolation period data in Turkey for installations of wind and solar power plants  

Science Journals Connector (OSTI)

Wind and solar power plant installations have been recently increased rapidly with respect to the depletion of fossil-based fuels all over the world. Due to stochastic nature of meteorological conditions, wind and solar energies have a non-schedulable nature and they require several installation analyses to determine the location and the capacities of wind and solar power to be produced. This paper focuses on the similarity, feasibility and numerical analyses of 75 cities in Turkey based on the monthly average wind speed and insolation period data. The nearest and the farest neighbor algorithms are used as agglomerative hierarchical clustering methods with Euclidean, Manhattan and Minkowski distance metrics in the stage of making the similarity and feasibility analyses. The maximum cophenetic correlation coefficient is achieved by the nearest neighbor algorithm with the Minkowski distance metric in the similarity and feasibility analyses. On the other hand, graphical representations of the monthly average wind speed and insolation period data are utilized for making the numerical analysis. The highest annual average wind speed and insolation period are obtained as 3.88 m/s and 8.45 h/day, respectively. Overall, many inferences were achieved in acceptable and efficient limits for wind and solar energy.

Ilhami Colak; Seref Sagiroglu; Mehmet Demirtas; Mehmet Yesilbudak

2013-01-01T23:59:59.000Z

46

Position vs. Velocity Control for Tilt-Based Interaction Robert J. Teather*  

E-Print Network (OSTI)

like a steering wheel, and "marble maze" games where tilting rolls a ball to simulate gravity. Although's subjective impression of the system. 2 RELATED WORK 2.1 Tilt-Based Interaction Tilt control has long been

MacKenzie, Scott

47

File:NREL-africa-tilt.pdf | Open Energy Information  

Open Energy Info (EERE)

tilt.pdf tilt.pdf Jump to: navigation, search File File history File usage Africa - Annual Flat Plate Tilted at Latitude (PDF) Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 5.69 MB, MIME type: application/pdf) Title Africa - Annual Flat Plate Tilted at Latitude (PDF) Description Africa - Annual Flat Plate Tilted at Latitude (PDF) Sources National Renewable Energy Laboratory Authors Donna Heimiller Related Technologies Solar, Solar-PV, Solar-40km Creation Date 2005-01-11 Extent Continent Countries Africa UN Region File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 15:34, 14 December 2010 Thumbnail for version as of 15:34, 14 December 2010 1,650 × 1,275 (5.69 MB) MapBot (Talk | contribs) Automated upload from NREL's "mapsearch" data

48

Laser Guide Star Adaptive Optics without Tip-tilt  

E-Print Network (OSTI)

Adaptive optics (AO) systems allow a telescope to reach its diffraction limit at near infrared wavelengths. But to achieve this, a bright natural guide star (NGS) is needed for the wavefront sensing, severely limiting the fraction of the sky over which AO can be used. To some extent this can be overcome with a laser guide star (LGS). While the laser can be pointed anywhere in the sky, one still needs to have a natural star, albeit fainter, reasonably close to correct the image motion (tip-tilt) to which laser guide stars are insensitive. There are in fact many astronomical targets without suitable tip-tilt stars, but for which the enhanced resolution obtained with the Laser Guide Star Facility (LGSF) would still be very beneficial. This article explores what adaptive optics performance one might expect if one dispenses with the tip-tilt star, and in what situations this mode of observing might be needed.

R. Davies; S. Rabien; C. Lidman; M. Le Louarn; M. Kasper; N. M. Forster Schreiber; V. Roccatagliata; N. Ageorges; P. Amico; C. Dumas; F. Mannucci

2008-01-24T23:59:59.000Z

49

Spheromak tilt stabilization with an energetic particle component  

Science Journals Connector (OSTI)

The tilt and shift stability of a spheromak plasma in the presence of a large orbit ion?ring component is determined by evaluating the magnetic interaction of the plasma with the ion ring and the external coils. Neither the ion?ring toroidal current nor the ring inverse aspect ratio is required to be small. The influence of conducting walls is considered to be negligible as is appropriate for compression experiments. The plasma tilt and shift stability has been evaluated for a comprehensive set of numerically generated self?consistent hybrid spheromak/ion?ring equilibria. Stable equilibria are found over a considerable range of the parameters. The tilt stabilization of the plasma typically requires that more than about 25% of the total toroidal current be carried by the ion ring.

C. Mehanian; R. V. E. Lovelace

1988-01-01T23:59:59.000Z

50

Reverse time migration in tilted transversely isotropic media  

SciTech Connect

This paper presents a reverse time migration (RTM) method for the migration of shot records in tilted transversely isotropic (TTI) media. It is based on the tilted TI acoustic wave equation that was derived from the dispersion relation. The RTM is a full depth migration allowing for velocity to vary laterally as well as vertically and has no dip limitations. The wave equation is solved by a tenth-order finite difference scheme. Using 2D numerical models, we demonstrate that ignoring the tilt angle will introduce both lateral and vertical shifts in imaging. The shifts can be larger than 0.5 wavelength in the vertical direction and 1.5 wavelength in the lateral direction.

Zhang, Linbing; Rector III, James W.; Hoversten, G. Michael

2004-07-01T23:59:59.000Z

51

Iris tilting and RF steering in the SLAC Linac  

SciTech Connect

For some time now, the sources of RF transverse beam steering in the SLAC Linac have been a mystery. The previously known sources, coupler asymmetries and survey misalignment, have predicted deflections which are frequently much smaller than the observed deflections. A new source of RF steering has been discovered: the tilting of accelerator irises. Measurements of iris tilting in a forty foot accelerator girder are compared with measurements of RF beam deflections and are found to be strongly correlated. 4 refs., 6 figs., 3 tabs.

Seeman, J.T.

1985-05-02T23:59:59.000Z

52

Numerical study of natural convection in fully open tilted cavities  

SciTech Connect

A numerical simulation of two-dimensional laminar natural convection in a fully open tilted square cavity with an isothermally heated back wall is conducted. The remaining two walls of the cavity are adiabatic. Steady-state solutions are presented for Grashof numbers between 10{sup 2} and 10{sup 5} and for tilt angles ranging from {minus}60{degree} to 90{degree} (where 90{degree} represents a cavity with the opening facing down). The fluid properties are assumed to be constant except for the density variation with temperature that gives rise to the buoyancy forces, which is treated by the Boussinesq approximation. The fluid concerned is air with Prandtl number fixed at 0.71. The governing equations are expressed in a normalized primitive variables formulation. Numerical predictions of the velocity and temperature fields are obtained using the finite-volume-based power law (SIMPLER: Semi-Implicit Method for Pressure-Linked Equations Revised) algorithm. For a vertical open cavity ({alpha} = 0{degree}), the algorithm generated results that were in good agreement with those previously published. Flow patterns and isotherms are shown in order to give a better understanding of the heat transfer and flow mechanisms inside the cavity. Effects of the controlling parameters-Grashof number and tilt angle-on the heat transfer (average Nusselt number) are presented and analyzed. The results also revealed that the open-cavity Nusselt number approaches the flat-plate solution when either Grashof number or tilt angle increases. In addition, a correlation of the Nusselt number in terms of the Grashof number and tilt angle is developed and presented; a comparison is made with available data from other literature.

Elsayed, M.M.; Al-Najem, N.M.; El-Refaee, M.M.; Noor, A.A.

1999-09-01T23:59:59.000Z

53

EIS-0039: Motor Gasoline Deregulation and the Gasoline Tilt  

Energy.gov (U.S. Department of Energy (DOE))

The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts, including social and economic impacts, that may result from either of two proposed regulatory changes: (1) the exemption of motor gasoline from the Department of Energy's Mandatory Petroleum Price and Allocation Regulations, and (2) the adoption of the gasoline tilt, a proposed regulation that would allow refiners to recover an additional amount of their total increased costs on gasoline.

54

Splay and tilt energy of bipolar lipid membranes  

E-Print Network (OSTI)

Archaea organisms are able to survive in extremely aggressive environment. It is thought that such resistance, at least, in part is sustained by unique properties of archaea membrane. The membrane consists of so called bolalipids, which has two polar heads joined by two hydrocarbon chains. Thus bolalipids can exist in two conformations: i) polar heads are located at different sides of bolalipid layer, so called, O-shape; ii) polar heads are located at the same side of the layer, so called, U-shape. Both polar heads and chains are chemically different from those for conventional lipids. In the present study we develop basis for theory of elasticity of bolalipid membranes. Deformations of splay, tilt and Gaussian curvature are considered. We show that energetic contributions of tilt deformation from two surfaces of bolalipid layer are additive, as well as Gaussian curvature, while splay deformations yield a cross-term. The presence of U-shapes is taken into account in terms of the layer spontaneous curvature. Estimation of tilt modulus and possible experiments allowing to measure splay moduli are described.

Timur R. Galimzyanov; Peter I. Kuzmin; Peter Pohl; Sergey A. Akimov

2014-12-28T23:59:59.000Z

55

POTATO - a program for generating perovskite structures distorted by tilting of rigid octahedra  

Science Journals Connector (OSTI)

A program that, given the tilt system, tilt angles and octahedral bond distances, will calculate the ideal crystal structure for AMO3 and A2MM'O6 perovskites distorted by octahedral tilting is presented. See the Journal of Applied Crystallography Software List 1997.

Woodward, P.M.

1997-04-01T23:59:59.000Z

56

Electronic properties of graphite in tilted magnetic fields  

SciTech Connect

The minimal nearest-neighbor tight-binding model with the Peierls substitution is employed to describe the electronic structure of Bernal-stacked graphite subject to tilted magnetic fields. We show that while the presence of the in-plane component of the magnetic field has a negligible effect on the Landau level structure at the K point of the graphite Brillouin zone, at the H point it leads to the experimentally observable splitting of Landau levels which grows approximately linearly with the in-plane field intensity.

Goncharuk, Nataliya A.; Smr?ka, Ludvík [Institute of Physics, Academy of Science of the Czech Republic, v. v. i., Cukrovarnická 10, 162 53 Praha 6 (Czech Republic)

2014-05-15T23:59:59.000Z

57

Microelectromechanical apparatus for elevating and tilting a platform  

DOE Patents (OSTI)

A microelectromechanical (MEM) apparatus is disclosed which has a platform that can be elevated above a substrate and tilted at an arbitrary angle using a plurality of flexible members which support the platform and control its movement. Each flexible member is further controlled by one or more MEM actuators which act to bend the flexible member. The MEM actuators can be electrostatic comb actuators or vertical zip actuators, or a combination thereof. The MEM apparatus can include a mirror coating to form a programmable mirror for redirecting or switching one or more light beams for use in a projection display. The MEM apparatus with the mirror coating also has applications for switching light beams between optical fibers for use in a local area fiber optic network, or for use in fiber optic telecommunications or data communications systems.

Miller, Samuel Lee (Albuquerque, NM); McWhorter, Paul Jackson (Albuquerque, NM); Rodgers, Murray Steven (Albuquerque, NM); Sniegowski, Jeffry J. (Edgewood, NM); Barnes, Stephen M. (Albuquerque, NM)

2003-04-08T23:59:59.000Z

58

Precision tip-tilt-piston actuator that provides exact constraint  

DOE Patents (OSTI)

A precision device which can precisely actuate three degrees of freedom of an optic mount, commonly referred to as tip, tilt, and piston. The device consists of three identical flexure mechanisms, an optic mount to be supported and positioned, a structure that supports the flexure mechanisms, and three commercially available linear actuators. The advantages of the precision device is in the arrangement of the constraints offered by the flexure mechanism and not in the particular design of the flexure mechanisms, as other types of mechanisms could be substituted. Each flexure mechanism constrains two degrees of freedom in the plane of the mechanisms and one direction is actuated. All other degrees of freedom are free to move within the range of flexure mechanisms. Typically, three flexure mechanisms are equally spaced in angle about to optic mount and arranged so that each actuated degree of freedom is perpendicular to the plane formed by the optic mount. This arrangement exactly constrains the optic mount and allows arbitrary actuated movement of the plane within the range of the flexure mechanisms. Each flexure mechanism provides a mechanical advantage, typically on the order of 5:1, between the commercially available actuator and the functional point on the optic mount. This improves resolution by the same ratio and stiffness by the square of the ratio.

Hale, Layton C. (Livermore, CA)

1999-01-01T23:59:59.000Z

59

The role of tilted heating in the evolution of the MJO Cara-Lyn Lappen1  

E-Print Network (OSTI)

The role of tilted heating in the evolution of the MJO Cara-Lyn Lappen1 and Courtney Schumacher2 1 the role of tilted heating in the evolution of the MJO. It is believed that the inability of many general heating distributions. Given the MJO's importance in tropical climate, we need to better understand what

60

Latitude Based Model for Tilt Angle Optimization for Solar Collectors in the Mediterranean Region  

Science Journals Connector (OSTI)

Abstract This paper inspects the different parameters that intervene in the determination of the optimal tilt angle for maximum solar energy collection. It proposes a method for calculating the optimal tilt angle based upon the values of the daily global solar radiation on a horizontal surface. A computer program using the mathematical model to calculate the solar radiation incident on an inclined surface as a function of the tilt angle is implemented. Four years data of daily global solar radiation on a horizontal surface in 35 sites in different countries of the Mediterranean region is used. The program assumes a due south orientation of the collectors and it determines the optimal tilt angle for maximum solar radiation collection for sites in the Mediterranean region. A regression analysis using the results of the computer simulation is conducted to develop a latitude based tilt angle optimization mathematical model for maximum solar radiation collection for the sites. We tested both a linear and a quadratic model (of the form ax2+bx) for representing the relationship between the annual optimal tilt angle and the site's latitude. The quadratic model is better; it provides very high prediction accuracy. 99.87% of the variation in the annual optimal tilt angle is explained by the variability in site's latitude with an average residual angle of only 0.96° for all 35 sites studied. It also gives an average percentage decrease in the annual solar radiation of only 0.016% when compared with actual optimal tilt angles.

Hassane Darhmaoui; Driss Lahjouji

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Estimation of 5-min solar global irradiation on tilted planes by ANN method in Bouzareah, Algeria  

E-Print Network (OSTI)

], three main reasons make it impossible to develop a simple model for converting horizontal global solar surface The solar radiation arriving on a tilted collector has, most of the time, a beam component (nilEstimation of 5-min solar global irradiation on tilted planes by ANN method in Bouzareah, Algeria K

Paris-Sud XI, Université de

62

Head tilt during driving DANIEL C. ZIKOVITZ and LAURENCE R. HARRIS *  

E-Print Network (OSTI)

Head tilt during driving DANIEL C. ZIKOVITZ ² and LAURENCE R. HARRIS² * Departments of ² Biology and Psychology, York University, Toronto, Ontario M3J 1P3, Canada Keywords: Driving behaviour; Head tilt; Vision with the visually-available estimate of the curvature of the road (r 2 = 0.86) but not with the centripetal force (r

Harris, Laurence R.

63

Self-Optimization of Antenna Tilt and Pilot Power for Dedicated Channels  

E-Print Network (OSTI)

Self-Optimization of Antenna Tilt and Pilot Power for Dedicated Channels Abstract-- In Radio Access Networks (RAN), fixed configurations result in poor network efficiency. This sub- optimal performance present a framework for a self-optimizing RAN, which adapts Antenna Tilt and Pilot Power according

Paris-Sud XI, Université de

64

The Tilt of the Leading Edge of Mesoscale Tropical Convective Lines  

Science Journals Connector (OSTI)

The tilt with height of the leading edge of seven mesoscale convective lines in GATE is determined by two independent methods. When averaged over time and along the line axis, the tilt is found to he surprisingly shallow, between 20 and 35 ...

M. A. LeMone; G. M. Barnes; E. J. Szoke; E. J. Zipser

1984-03-01T23:59:59.000Z

65

File:NREL-afg-10km-tilt.pdf | Open Energy Information  

Open Energy Info (EERE)

tilt.pdf tilt.pdf Jump to: navigation, search File File history File usage Afghanistan - Annual Flat Plate Tilted at Latitude Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 468 KB, MIME type: application/pdf) Title Afghanistan - Annual Flat Plate Tilted at Latitude Description Afghanistan - Annual Flat Plate Tilted at Latitude Sources National Renewable Energy Laboratory Authors Donna Heimiller Related Technologies Solar, Solar-PV, Solar-10km Creation Date 2007-06-01 Extent International Countries Afghanistan UN Region Southern Asia File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 15:30, 14 December 2010 Thumbnail for version as of 15:30, 14 December 2010 1,650 × 1,275 (468 KB) MapBot (Talk | contribs) Automated upload from NREL's "mapsearch" data

66

The optimum tilt angle for flat-plate solar collectors in Iran  

Science Journals Connector (OSTI)

This paper aims at determining the optimum tilt angle for south facing flat-plate solar collectors in Iran. Solar radiation on a horizontal surface was estimated by applying an empirical method and employing meteorological data from 80 selected cities. A mathematical model was used for estimating the solar radiation at different tilt angles. Daily monthly seasonally bi-annually and yearly optimum tilt angles and solar radiations were determined for 80 selected cities. Recommendations were made on the optimum tilt angle adjustment for different places in the country in order to benefit the best solar radiation available. The averaged benefits of annual solar radiation for 80 cities were 21.3% for daily 21% for monthly 19.6% for seasonal 19.3% for bi-annual and 13.3% for yearly adjustments compared with the radiation on the horizontal collector. Based on these results adjusting tilt angles at least twice a year is recommended. Optimum tilt angles for cloudy sky cities with a low clearness index are lower than those for cities at the same latitude angle having a higher clearness index. In addition to latitude angle the climate conditions are also important for determining the optimum tilt angle.

Farzad Jafarkazemi; S. Ali Saadabadi; Hadi Pasdarshahri

2012-01-01T23:59:59.000Z

67

Design and development of a 329-segment tip-tilt piston mirror array for space-based adaptive optics  

E-Print Network (OSTI)

Design and development of a 329-segment tip-tilt piston mirror array for space-based adaptive. It consists of 329-hexagonal segments on a 600 m pitch, each with tip/tilt and piston degrees of freedom

68

Proto-CIRCUS Tilted-Coil Tokamak-Torsatron Hybrid: Design and Construction  

E-Print Network (OSTI)

We present the field-line modeling, design and construction of a prototype circular-coil tokamak-torsatron hybrid called Proto-CIRCUS. The device has a major radius R = 16 cm and minor radius a tokamak, but they are tilted. This, combined with induced or driven plasma current, is expected to generate rotational transform, as seen in field-line tracing and equilibrium calculations. The device is expected to operate at lower plasma current than a tokamak of comparable size and magnetic field, which might have interesting implications for disruptions and steady-state operation. Additionally, the toroidal magnetic ripple is less pronounced than in an equivalent tokamak in which the coils are not tilted. The tilted coils are interlocked, resulting in a relatively low aspect ratio, and can be moved, both radially and in tilt angle, between discharges. This capability will be exploited for detailed comparisons between calculations and field-line mapping me...

Clark, A W; Hammond, K C; Kornbluth, Y; Spong, D A; Sweeney, R; Volpe, F A

2014-01-01T23:59:59.000Z

69

Tilt-up concrete panels : an investigation of flexural stresses and punching shear during lifting  

E-Print Network (OSTI)

Tilt-up construction is becoming more popular in the United States due to its ease of construction, reliability, and relatively low construction and maintenance costs. In its most typical form, a concrete panel is cast on ...

Bono, Matthew P. (Matthew Paul)

2011-01-01T23:59:59.000Z

70

Stacking-velocity inversion with borehole constraints for tilted TI media Xiaoxiang Wang1  

E-Print Network (OSTI)

- ing an accurate anisotropic velocity model remains a challenging problem. For TI models, transverse isotropy with a tilted symmetry axis TTI is an ap- propriate model for dipping shale layers near

Tsvankin, Ilya

71

A Novel Computational Model for Tilting Pad Journal Bearings with Soft Pivot Stiffnesses  

E-Print Network (OSTI)

A novel tilting pad journal bearing model including pivot flexibility as well as temporal fluid inertia effects on the thin film fluid flow aims to accurately predict the bearing forced performance. The predictive model also accounts for the thermal...

Tao, Yujiao 1988-

2012-12-10T23:59:59.000Z

72

Rotordynamic and thermal analyses of compliant flexure pivot tilting pad gas bearings  

E-Print Network (OSTI)

-free micro turbomachinery. The pad radial compliance was for accommodation of large rotor growth at high speeds. Parametric studies on pivot offset, preload, and tilting stiffness were performed using non-linear orbit simulations and coast-down simulations...

Sim, Kyu-Ho

2009-05-15T23:59:59.000Z

73

File:NREL-bhutan-10kmsolar-tilt.pdf | Open Energy Information  

Open Energy Info (EERE)

kmsolar-tilt.pdf kmsolar-tilt.pdf Jump to: navigation, search File File history File usage Bhutan - Annual - Flat PlateTilted at Latitude Solar Radiation Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 333 KB, MIME type: application/pdf) Title Bhutan - Annual - Flat PlateTilted at Latitude Solar Radiation Description Bhutan - Annual - Flat PlateTilted at Latitude Solar Radiation Sources National Renewable Energy Laboratory Authors Donna Heimiller Related Technologies Solar, Solar-PV, Solar-10km Creation Date 2009-03-03 Extent International Countries Bhutan UN Region Southern Asia File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 15:51, 14 December 2010 Thumbnail for version as of 15:51, 14 December 2010 1,650 × 1,275 (333 KB) MapBot (Talk | contribs) Automated upload from NREL's "mapsearch" data

74

Solar: annual and seasonal average latitude tilt GIS data (contours) for  

Open Energy Info (EERE)

latitude tilt GIS data (contours) for latitude tilt GIS data (contours) for Brazil from INPE and LABSOLAR Dataset Summary Description (Abstract): Annual and seasonal mean of Latitude Tilt Solar Radiation in kWh/m2/day based on data from 1995 to 2002 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The cross-calibration process worked with data from 3 ground stations: Caicó (located in the Northeast of Brazil), Florianópolis (located in the South) and Balbina (located in Amazonia). These data have been used for validation and comparison of radiation transfer models operated in SWERA to estimate the incidence of solar radiation on the surface of the country from satellite images

75

Experimental investigation of line-tying effects on the spheromak tilt mode  

Science Journals Connector (OSTI)

In the absence of close fitting walls or conducting elements, the spheromak plasma configuration is unstable to at least one global MHD mode (tilting or shifting). Previous theoretical work suggested that line-tying effects could play a role in slowing down these modes. Line-tying was investigated in the Proto S-1/C spheromak device by a direct measurement of the line-tying character of the perturbed current within a passive stabilizer. The ring model of tilting is extended to include line-tying stabilization by taking into account the plasma sheath resistance. Comparison with experimental results show good agreement between predicted and observed growth rates.

F.J. Wysocki

1987-01-01T23:59:59.000Z

76

Stabilizing Effect of Finite-Gyroradius Beam Particles on the Tilting Mode of Spheromaks  

Science Journals Connector (OSTI)

The equilibrium shape of a low-pressure spheromak plasma with a small component of toroidal current carried by finite-gyroradius particles is computed. The stabilizing influence of this current on the tilting mode is determined by employing an energy principle that includes gyroscopic and finite-gyroradius effects.

R. N. Sudan and P. K. Kaw

1981-08-24T23:59:59.000Z

77

Roughness of a tilted anharmonic string at depinning T. Goodman1  

E-Print Network (OSTI)

a string with a net average tilt, we demonstrate that the anhar- monic elastic energy crosses the model renormalization group calculation by Le Doussal and Wiese [8] argued that the quenched KPZ term can indeed with zero average and unit vari- ance, f is a uniform external driving force, and Eel is the elastic energy

Teitel, Stephen L.

78

Identification of Avalanche Precursors by Acoustic Probing in the Bulk of Tilted Granular Layers  

E-Print Network (OSTI)

Identification of Avalanche Precursors by Acoustic Probing in the Bulk of Tilted Granular Layers M simultaneously caracterize precursors on the free surface with an optical method and in the bulk with acoustic to probe rearrangements in the bulk of the granular material. A linear method can also be used provided

Paris-Sud XI, Université de

79

Friction in (im-)miscible polymer brush systems and the role of transverse polymer-tilting  

E-Print Network (OSTI)

Friction in (im-)miscible polymer brush systems and the role of transverse polymer-tilting Sissi de preferred solvent, leading to low friction and low wear rates. Here, we demonstrate, using molecular systems also show smaller friction than miscible systems, although the friction reduction is less than

Mueser, Martin

80

Application of the Cubed-Sphere Grid to Tilted Black-Hole Accretion Disks  

SciTech Connect

In recent work we presented the first results of global general relativistic magnetohydrodynamic (GRMHD) simulations of tilted (or misaligned) accretion disks around rotating black holes. The simulated tilted disks showed dramatic differences from comparable untilted disks, such as asymmetrical accretion onto the hole through opposing 'plunging streams' and global precession of the disk powered by a torque provided by the black hole. However, those simulations used a traditional spherical-polar grid that was purposefully underresolved along the pole, which prevented us from assessing the behavior of any jets that may have been associated with the tilted disks. To address this shortcoming we have added a block-structured 'cubed-sphere' grid option to the Cosmos++ GRMHD code, which will allow us to simultaneously resolve the disk and polar regions. Here we present our implementation of this grid and the results of a small suite of validation tests intended to demonstrate that the new grid performs as expected. The most important test in this work is a comparison of identical tilted disks, one evolved using our spherical-polar grid and the other with the cubed-sphere grid. We also demonstrate an interesting dependence of the early-time evolution of our disks on their orientation with respect to the grid alignment. This dependence arises from the differing treatment of current sheets within the disks, especially whether they are aligned with symmetry planes of the grid or not.

Fragile, P C; Lindner, C C; Anninos, P; Salmonson, J D

2008-09-24T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Evaluation of solar energy resources by establishing empirical models for diffuse solar radiation on tilted surface and analysis for optimum tilt angle for a prospective location in southern region of Sindh, Pakistan  

Science Journals Connector (OSTI)

Abstract Diffuse solar radiation data is very important and is required for solar energy system implementations. The main purpose of the present study is to evaluate solar energy resources by establishing diffuse solar radiation models and obtaining optimum tilt angle fora prospective location is southern region of Sindh, Pakistan. Due to the unavailability of measured diffuse solar radiation data, nine new models, based on available data from local agency and values obtain from existing models, to predict diffuse solar radiation on tilted surface has been established. The best model was chosen based on test results from statistical indicators. The optimum tilt angle for monthly, seasonally, half-yearly and yearly adjustment was determined. The optimum tilt angle varies from 0° in May, June and July to 49° in December. The yearly optimum tilt angle was found as 23°, which is close to latitude of investigated location (25°07?N). The monthly average total, beam and diffuse solar radiations were calculated for optimum and vertical tilted surfaces and were compared with those obtain for horizontal surfaces. The half-yearly adjustment of optimum tilt angle is recommended for the investigated location because very small difference in annual solar energy gains in comparison with monthly or seasonal adjustment. The total annual energy for completer year and for four seasons of the year was calculated and found that maximum total annual energy is obtained at optimum tilt angle.

Shahnawaz Farhan Khahro; Kavita Tabbassum; Shahnawaz Talpur; Mohammad Bux Alvi; Xiaozhong Liao; Lei Dong

2015-01-01T23:59:59.000Z

82

Molecular Simulation of Fracture Dynamics of Symmetric Tilt Grain Boundaries in Graphene  

E-Print Network (OSTI)

Atomistic simulations were utilized to obtain microscopic information of the elongation process in graphene sheets consisting of various embedded symmetric tilt grain boundaries (GBs). In contrast to pristine graphene, these GBs fractured in an extraordinary pattern under transverse uniaxial elongation in all but the largest misorientation angle case, which exhibited intermittent crack propagation and formed many stringy residual connections after quasi mechanical failure. The strings known as monoatomic carbon chains (MACCs), whose importance was recently highlighted, gradually extended to a maximum of a few nanometers as the elongation proceeded. These features, which critically affect the tensile stress and the shape of stress-strain curve, were observed in both armchair and zigzag-oriented symmetric tilt GBs. However, there exist remarkable differences in the population density and the achievable length of MACCs appearing after quasi mechanical failure which were higher in the zigzag-oriented GBs. In addi...

Jhon, Young In; Smith, Robert; Jhon, Myung S

2012-01-01T23:59:59.000Z

83

Inversion of azimuthally dependent NMO velocity in transversely isotropic media with a tilted axis of symmetry  

SciTech Connect

Just as the transversely isotropic model with a vertical symmetry axis (VTI media) is typical for describing horizontally layered sediments, transverse isotropy with a tilted symmetry axis (TTI) describes dipping TI layers (such as tilted shale beds near salt domes) or crack systems. P-wave kinematic signatures in TTI media are controlled by the velocity V{sub PO} in the symmetry direction, Thomsen's anisotropic coefficients {xi} and {delta}, and the orientation (tilt {nu} and azimuth {beta}) of the symmetry axis. Here, the authors show that all five parameters can be obtained from azimuthally varying P-wave NMO velocities measured for two reflectors with different dips and/or azimuths (one of the reflectors can be horizontal). The shear-wave velocity V{sub SO} in the symmetry direction, which has negligible influence on P-wave kinematic signatures, can be found only from the moveout of shear waves. Using the exact NMO equation, the authors examine the propagation of errors in observed moveout velocities into estimated values of the anisotropic parameters and establish the necessary conditions for a stable inversion procedure. Since the azimuthal variation of the NMO velocity is elliptical, each reflection event provides them with up to three constraints on the model parameters. Generally, the five parameters responsible for P-wave velocity can be obtained from two P-wave ellipses, but the feasibility of the moveout inversion strongly depends on the tilt {nu}. While most of the analysis is carried out for a single layer, the authors also extend the inversion algorithm to vertically heterogeneous TTI media above a dipping reflector using the generalized Dix equation. A synthetic example for a strongly anisotropic, stratified TTI medium demonstrates a high accuracy of the inversion.

Grechka, V.; Tsvankin, I.

2000-02-01T23:59:59.000Z

84

Existence of the Wigner function with correct marginal distributions along tilted lines on a lattice  

E-Print Network (OSTI)

In order to determine the Wigner function uniquely, we introduce a new condition which ensures that the Wigner function has correct marginal distributions along tilted lines. For a system in $N$ dimensional Hilbert space, whose "phase space" is a lattice with $N^2$ sites, we get different results depending on whether $N$ is odd or even. Under the new condition, the Wigner function is determined if $N$ is an odd number, but it does not exist if $N$ is even.

Minoru Horibe; Akiyoshi Takami; Takaaki Hashimoto; Akihisa Hayashi

2001-08-10T23:59:59.000Z

85

South America Latitude Tilted SR Solar Model from INPE and LABSOLAR |  

Open Energy Info (EERE)

Latitude Tilted SR Solar Model from INPE and LABSOLAR Latitude Tilted SR Solar Model from INPE and LABSOLAR Dataset Summary Description (Abstract): Mean values of Latitude Tilted Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model (developed by INPE - National Institute for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files.The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory. The BRASIL-SR model is not validated for areas covered by snow.

86

Design and construction of a novel quad tilt-wing UAV E. Cetinsoy, S. Dikyar, C. Hancer, K.T. Oner, E. Sirimoglu, M. Unel  

E-Print Network (OSTI)

Design and construction of a novel quad tilt-wing UAV E. Cetinsoy, S. Dikyar, C. Hancer, K.T. Oner 12 March 2012 Available online xxxx Keywords: UAV Quad tilt-wing Aerodynamic design Carbon composite VehIcle). SUAVI is an electric powered quad tilt-wing UAV that is capable of vertical takeoff

Ã?Â?nel, Mustafa

87

Investigation of failed fuel detection and location using a flux tilting method in a fast breeder reactor  

SciTech Connect

Detection and location of failed fuel in a liquid-metal fast breeder reactor (LMFBR) are very important both for safety and availability. When a fuel failure is detected, it is desirable to identify the failed subassembly quickly to reduce plant shutdown time. The flux tilting method is expected to effectively identify the defective subassembly. The feasibility of the flux tilting method is investigated for an LMFBR with a 100-MW (electric) homogeneous core. A numerical simulation is performed to estimate the viability of the flux tilting method, and a combination of the flux tilting method and the sipping method is found to be very effective in identifying the failed subassembly. In this paper a functional scheme for a computer-aided failed fuel detection and location system is discussed as part of a future on-line support system.

Hamada, M.; Uehara, K.; Muramatsu, K. (Japan Atomic Power Co., 1-6-1 Otemachi, Chiyoda-ku, Tokyo 100 (JP)); Kamei, T.; Tamaoki, T.; Yamaoka, M.; Sonada, Y.; Sano, Y. (Toshiba Corp., Nuclear Engineering Lab., 4-1 Ukishima-cho, Kawasaki-ku, Kawasaki 210 (JP))

1992-04-01T23:59:59.000Z

88

Measured and Predicted Rotor-Pad Transfer Functions for a Rocker-Pivot Tilting-Pad Journal Bearing  

E-Print Network (OSTI)

Many researchers have compared predicted stiffness and damping coefficients for tilting-pad journal bearings (TPJBs) to measurements. Most have found that direct damping is consistently overpredicted. The thrust of this research is to explain...

Wilkes, Jason Christopher

2012-02-14T23:59:59.000Z

89

Real-time vibration measurement by a spatial phase-shifting technique with a tilted holographic interferogram  

Science Journals Connector (OSTI)

Real-time vibration measurement by a tilted holographic interferogram is presented that utilizes the real-time digital fringe processor of a video signal. Three intensity data sampled...

Nakadate, Suezou; Isshiki, Masaki

1997-01-01T23:59:59.000Z

90

Entanglement, avoided crossings, and quantum chaos in an Ising model with a tilted magnetic field  

SciTech Connect

We study a one-dimensional Ising model with a magnetic field and show that tilting the field induces a transition to quantum chaos. We explore the stationary states of this Hamiltonian to show the intimate connection between entanglement and avoided crossings. In general, entanglement gets exchanged between the states undergoing an avoided crossing with an overall enhancement of multipartite entanglement at the closest point of approach, simultaneously accompanied by diminishing two-body entanglement as measured by concurrence. We find that both for stationary as well as nonstationary states, nonintegrability leads to a destruction of two-body correlations and distributes entanglement more globally.

Karthik, J.; Sharma, Auditya; Lakshminarayan, Arul [Department of Physics, Indian Institute of Technology Madras, Chennai 600036 (India)

2007-02-15T23:59:59.000Z

91

FLASH seminar -14/01/08 Eduard Prat, DESY Beam tilt studies at FLASH  

E-Print Network (OSTI)

generated different vertical bumps at BPM9ACC1. For each bump we measured: -Dispersion from ACC1 -Beam tilt.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 V1GUN (23-10-07) #BPM Orbitresponse[mm/mrad] 1mrad model 0 2 4 6 8 10 12 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 V3GUN (23-10-07) #BPM Orbitresponse[mm/mrad] 1mrad model 0 2 4 6

92

An experimental investigation of a tilt rotor aircraft wake in ground effect  

E-Print Network (OSTI)

: Sktlld dS t' 1, "~Et 18, 6 (1975), pp. 51-673. Hunt, J. C. R. , Poulton, E. C. , and Mumford, J. C. , "The Effects of Wldppl:Sd't*l Bd tldt lt*p*' t, "~Bi1di Environment, 11 (1976), pp. 15-28. 50 VITA gichael Louis Frey III was born January 4, 1957...EXPERIMENTAL INVESTIGATION OF A TILT ROTOR AIRCRAFT WAKE IN GROUND EFFECT A Thesis by MICHAEL LOUIS FREY III Submi. tted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER...

Frey, Michael Louis

1982-01-01T23:59:59.000Z

93

Solar heat gain coefficient of complex fenestrations with a venetian blind for differing slat tilt angles  

SciTech Connect

Measured bidirectional transmittances and reflectances of a buff-colored venetian blind together with a layer calculation scheme developed in previous publications are utilized to produce directional-hemispherical properties for the venetian blind layer and solar heat gain coefficients for the blind in combination with clear double glazing. Results are presented for three blind slat tilt angles and for the blind mounted either interior to the double glazing or between the glass panes. Implications of the results for solar heat gain calculations are discussed in the context of sun positions for St. Louis, MO.

Klems, J.H.; Warner, J.L.

1996-08-01T23:59:59.000Z

94

Heliostat tilt and azimuth angle charts and the heliostat orientation protractor  

SciTech Connect

This paper reports that using cartesian heliostat field coordinates analytical expressions were derived for the heliostat tilt angle s, and heliostat azimuth angle {gamma} (clockwise from south). These expressions are dependent on the field cartesian coordinates of the center of the heliostat and the solar zenith and azimuth angles (clockwise from south), {theta}{sub z} and {Psi}, respectively. Here, cylindrical coordinates are conveniently used to derive the expressions for the heliostat angles s and {gamma}. The expression of {gamma}is used to construct the so-called heliostat orientation protractor. The protractor is a useful tool to determine the instantaneous heliostat azimuth angle as will be illustrated.

Elsayed, M.M.; Al-Rabghi, O.M. (Thermal Energy Dept., King Abdulaziz Univ., Jeddah 21413 (SA))

1992-02-01T23:59:59.000Z

95

Solar: monthly and annual average latitude tilt irradiance GIS data at  

Open Energy Info (EERE)

irradiance GIS data at irradiance GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Latitude Tilt Irradiance NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Latitude Tilt Radiation (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Note 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180, is bounded by 89 to 90 (north) and 179 to 180 (east). The mid-point of the region is +0.5 added to the the Lat/Lon value. These data are regional averages; not point data.

96

Numerical study of tilt stability of prolate field-reversed configurations  

SciTech Connect

Global stability of the Field-Reversed Configuration (FRC) has been investigated numerically using both 3D MHD and hybrid (fluid electron and delta f particle ion) simulations. The stabilizing effects of velocity shear and large ion orbits on the n = 1 internal tilt mode in the prolate FRCs have been studied. Sheared rotation is found to reduce the growth rate, however a large rotation rate with Mach number of M greater than or approximately equal to 1 is required in order for significant reduction in the instability growth rate to occur. Kinetic effects associated with large thermal ion orbits have been studied for different kinetic equilibria. These simulations show that there is a reduction in the tilt mode growth rate due to finite ion Larmor radius (FLR) effects, but complete linear stability has not been found, even when the thermal ion gyroradius is comparable to the distance between the field null and the separatrix. The instability existing beyond the FLR theory threshold could be due to the resonant interaction of the wave with ions whose Doppler shifted frequency matches the betatron frequency.

E. V. Belova; S. C. Jardin; H. Ji, M. Yamada; R. Kulsrud

2000-06-21T23:59:59.000Z

97

Optimal solar-PV tilt angle and azimuth: An Ontario (Canada) case-study  

Science Journals Connector (OSTI)

The purpose of this article is to determine the tilt angle and azimuth for a photovoltaic panel in Ontario (Canada) at which revenue is maximised. Measured and modelled solar radiation data, simulated photovoltaic panel performance, hourly electricity market data and details regarding pricing regimes from 2003 to 2008 are used to study two different locations. In all instances, the desired tilt angle is slightly less than latitude (depending upon the particular pricing regime, between 36° and 38° for Ottawa, which is at a latitude of 45°N, and between 32° and 35° for Toronto, which is at a latitude of 44°N), and the desired azimuth is close to due south (depending upon the particular pricing regime, between 4° west of due south and 6° east of due south for Ottawa, and between 1° west of due south and 2° east of due south for Toronto). In conclusion, the importance of solar electricity – particularly valuable because of when it is produced and where it can be produced – is highlighted, as are future priorities for research.

Ian H. Rowlands; Briana Paige Kemery; Ian Beausoleil-Morrison

2011-01-01T23:59:59.000Z

98

Brazil Latitude Tilted Solar Radiation Model (40km) from INPE and LABSOLAR  

Open Energy Info (EERE)

40km) from INPE and LABSOLAR 40km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Latitude tilted solar radiation in kWh/m2/day for 1 year organized into cells with 40km x 40km (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model and the SPRING software (both developed by INPE - National Institute for Space Research) were used to produce the dataset and SHAPE files.The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase

99

Tilt and shift mode stability in a spheromak with a flux core  

Science Journals Connector (OSTI)

The stability of spheromak equilibria with a flux core or reversal coil is studied by means of an ideal magnetohydrodynamic (MHD) code. Results depend critically upon whether the flux hole region (the current free area just inside the separatrix) is treated as a perfectly conducting plasma or as a vacuum. This indicates that the tilt and shift modes persist as resistive instabilities if they are stable in ideal MHD. Specifically for nonoptimally shaped equilibria the flux core must nearly touch the current channel if the flux hole is a vacuum whereas the core may be slightly outside the separatrix if the flux hole has conducting plasma. A larger margin exists for optimally shaped equilibria.

John M. Finn

1984-01-01T23:59:59.000Z

100

Rotordynamic coefficients for a load-between-pad, flexible-pivot tilting pad bearing at high loads  

E-Print Network (OSTI)

The dynamic and static performance of a flexure-pivot tilting pad bearing is presented at a load between pad configuration for various load and speed combinations. A similar work performed on the same bearing at lower loads ranging from 0-1 MPa (0...

Hensley, John Eric

2006-10-30T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Atomic structure of the {sigma}5 (210)/[001] symmetric tilt grain boundary in yttrium aluminum garnet  

SciTech Connect

The {Sigma}5(210)/[100] symmetric tilt grain boundary in YAG was produced by UHV diffusion bonding precisely oriented single crystals. The boundary has been characterized by HREM along two different directions, parallel and perpendicular to the tilt axis. Models of the atomic structure of the boundary were formed following the Coincident Site Lattice scheme. The resulting models are equivalent to twins formed at the atomic scale. The high resolution images show no rigid crystal translations away from the perfect mirror reflection relation. Comparison of the simulated images using the atomic model as input with the experimental images identifies the plane of mirror symmetry. The atomic model is shown to be in good agreement with the experimental images when viewed parallel to tilt axis, but disagrees with the images perpendicular to tilt axis. Agreement between simulated and experimental images can be improved by changing the composition of the grain boundary with respect to the bulk. To reach a more certain conclusion on the structure of the grain boundary will require additional theoretical calculations.

Campbell, G.H.; King, W.E.

1996-06-24T23:59:59.000Z

102

First Flight Tests for a Quadrotor UAV with Tilting Propellers Markus Ryll, Heinrich H. Bulthoff, and Paolo Robuffo Giordano  

E-Print Network (OSTI)

First Flight Tests for a Quadrotor UAV with Tilting Propellers Markus Ryll, Heinrich H. B¨ulthoff, and Paolo Robuffo Giordano Abstract-- In this work we present a novel concept of a quadrotor UAV show the capabilities of this new UAV concept. I. INTRODUCTION Common UAVs (Unmanned Aerial Vehicles

Paris-Sud XI, Université de

103

Limitations in solar module azimuth and tilt angles in building integrated photovoltaics at low latitude tropical sites in Brazil  

Science Journals Connector (OSTI)

Abstract Photovoltaic (PV) generation depends directly on the amount of radiation received by solar modules at a given temperature, and annual irradiation varies according to site location and PV array position. In this paper, the limitations and the solar irradiation levels received by building surfaces in different positions (with azimuth and tilt angle variation) in capital cities in Brazil are shown, making use of the Brazilian global horizontal solar irradiation data provided by the SWERA (Solar and Wind Energy Resource Assessment) project. These data were processed to generate figures on the irradiation at various PV module orientations and slopes for each city, which show the relative radiation levels received on specific azimuth and tilt angles in relation to the ideal position. Results were validated using four real and operating PV systems. In general, variations in azimuth or slope did not cause large annual irradiation losses up to around 20° tilt angles. This shows to PV system planners that under these fairly flexible conditions it is possible to install PV on any orientation, keeping high levels of annual irradiation, and that limitations in orientation and tilt can be relatively low. It also allows a quick analysis of PV retrofit in building-applied photovoltaics (BAPV), when seeking the best building surfaces to incorporate PV.

Ísis Portolan dos Santos; Ricardo Rüther

2014-01-01T23:59:59.000Z

104

6I).-TIEE TENCII RECORUITlENDED P O R CULTIIVATION I N SWEDEN. ]By FIEIY TILtYICLQRI.  

E-Print Network (OSTI)

6I).-TIEE TENCII RECORUITlENDED P O R CULTIIVATION I N SWEDEN. ]By FIEIY TILtYICLQRI. In Sweden \\vu pounds]. I n Sweden, when 'in suitable waters, like thoso in the northern part of the province of Snitlland, it reaches e weight of 6: or more pounds. I do not lrxiow how fast it grows in Sweden in a free

105

FlIGHT PATH FOLLOWING GUIDANCE FOR UNMANNED AIR VEHICLES WITH PAN-TILT CAMERA FOR TARGET OBSERVATION  

E-Print Network (OSTI)

Autonomous Vehicle (UAV) is equipped with a nose-mounted camera capable of pan and tilt rotation is affected by wind. Furthermore, the relative position of the sun can lead to glare and image overexposure. While the effect of wind can be improved by commanding a sideslip angle, image overexposure is avoided

Washington at Seattle, University of

106

Cone-beam mammo-computed tomography from data along two tilting arcs Hengyong Yu,b  

E-Print Network (OSTI)

Cone-beam mammo-computed tomography from data along two tilting arcs Kai Zeng,a Hengyong Yu . To address this problem, x-ray tomosynthesis and cone-beam computed tomography CT are two compelling from a limited num- ber of projections.4 Since its introduction in 1972, the area of tomosynthesis has

Virginia Tech

107

Magnetic particles confined in a modulated channel: structural transitions tunable by tilting a magnetic field  

E-Print Network (OSTI)

The ground state of colloidal magnetic particles in a modulated channel are investigated as function of the tilt angle of an applied magnetic field. The particles are confined by a parabolic potential in the transversal direction while in the axial direction a periodic substrate potential is present. By using Monte Carlo (MC) simulations, we construct a phase diagram for the different crystal structures as a function of the magnetic field orientation, strength of the modulated potential and the commensurability factor of the system. Interestingly, we found first and second order phase transitions between different crystal structures, which can be manipulated by the orientation of the external magnetic field. A re-entrant behavior is found between two- and four-chain configurations, with continuous second order transitions. Novel configurations are found consisting of frozen in solitons. By changing the orientation and/or strength of the magnetic field and/or the strength and the spatial frequency of the periodic substrate potential, the system transits through different phases.

J. E. Galván-Moya; D. Lucena; W. P. Ferreira; F. M. Peeters

2014-01-03T23:59:59.000Z

108

Test Problem: Tilted Rayleigh-Taylor for 2-D Mixing Studies  

SciTech Connect

The 'tilted-rig' test problem originates from a series of experiments (Smeeton & Youngs, 1987, Youngs, 1989) performed at AWE in the late 1980's, that followed from the 'rocket-rig' experiments (Burrows et al., 1984; Read & Youngs, 1983), and exploratory experiments performed at Imperial College (Andrews, 1986; Andrews and Spalding, 1990). A schematic of the experiment is shown in Figure 1, and comprises a tank filled with light fluid above heavy, and then 'tilted' on one side of the apparatus, thus causing an 'angled interface' to the acceleration history due to rockets. Details of the configuration given in the next chapter include: fluids, dimensions, and other necessary details to simulate the experiment. Figure 2 shows results from two experiments, Case 110 (which is the source for this test problem) that has an Atwood number of 0.5, and Case 115 (a secondary source described in Appendix B), with Atwood of 0.9 Inspection of the photograph in Figure 2 (the main experimental diagnostic) for Case 110. reveals two main areas for mix development; 1) a large-scale overturning motion that produces a rising plume (spike) on the left, and falling plume (bubble) on the right, that are almost symmetric; and 2) a Rayleigh-Taylor driven mixing central mixing region that has a large-scale rotation associated with the rising and falling plumes, and also experiences lateral strain due to stretching of the interface by the plumes, and shear across the interface due to upper fluid moving downward and to the right, and lower fluid moving upward and to the left. Case 115 is similar but differs by a much larger Atwood of 0.9 that drives a strong asymmetry between a left side heavy spike penetration and a right side light bubble penetration. Case 110 is chosen as the source for the present test problem as the fluids have low surface tension (unlike Case 115) due the addition of a surfactant, the asymmetry small (no need to have fine grids for the spike), and there is extensive reasonable quality photographic data. The photographs in Figure 2 also reveal the appearance of a boundary layer at the left and right walls; this boundary layer has not been included in the test problem as preliminary calculations suggested it had a negligible effect on plume penetration and RT mixing. The significance of this test problem is that, unlike planar RT experiments such as the Rocket-Rig (Youngs, 1984), Linear Electric Motor - LEM (Dimonte, 1990), or the Water Tunnel (Andrews, 1992), the Tilted-Rig is a unique two-dimensional RT mixing experiment that has experimental data and now (in this TP) Direct Numerical Simulation data from Livescu and Wei. The availability of DNS data for the tilted-rig has made this TP viable as it provides detailed results for comparison purposes. The purpose of the test problem is to provide 3D simulation results, validated by comparison with experiment, which can be used for the development and validation of 2D RANS models. When such models are applied to 2D flows, various physics issues are raised such as double counting, combined buoyancy and shear, and 2-D strain, which have not yet been adequately addressed. The current objective of the test problem is to compare key results, which are needed for RANS model validation, obtained from high-Reynolds number DNS, high-resolution ILES or LES with explicit sub-grid-scale models. The experiment is incompressible and so is directly suitable for algorithms that are designed for incompressible flows (e.g. pressure correction algorithms with multi-grid); however, we have extended the TP so that compressible algorithms, run at low Mach number, may also be used if careful consideration is given to initial pressure fields. Thus, this TP serves as a useful tool for incompressible and compressible simulation codes, and mathematical models. In the remainder of this TP we provide a detailed specification; the next section provides the underlying assumptions for the TP, fluids, geometry details, boundary conditions (and alternative set-ups), initial conditions, and acceleration history (an

Andrews, Malcolm J. [Los Alamos National Laboratory; Livescu, Daniel [Los Alamos National Laboratory; Youngs, David L. [AWE

2012-08-14T23:59:59.000Z

109

Recording and interpretation/analysis of tilt signals with five ASKANIA borehole tiltmeters at the KTB  

Science Journals Connector (OSTI)

In June 2003 a large scale injection experiment started at the Continental Deep Drilling site (KTB) in Germany. A tiltmeter array was installed which consisted of five high resolution borehole tiltmeters of the ASKANIA type also equipped with three dimensional seismometers. For the next 11 months 86 000 m 3 were injected into the KTB pilot borehole 4000 m deep. The average injection rate was approximately 200 l ? min . The research objective was to observe and to analyzedeformation caused by the injection into the upper crust at the kilometer range. A new data acquisition system was developed by Geo-Research Center Potsdam (GFZ) to master the expected huge amount of seismic and tilt data. Furthermore it was necessary to develop a new preprocessing software called PREANALYSE for long-period time series. This software includes different useful functions such as step and spike correction interpolation filtering and spectral analysis. This worldwide unique installation offers the excellent opportunity of the separation of signals due to injection and due to environment by correlation of the data of the five stations with the ground water table and meteorological data.

André Gebauer; Thomas Jahr; Gerhard Jentzsch

2007-01-01T23:59:59.000Z

110

A free real-time hourly tilted solar irradiation data Website for Europe  

E-Print Network (OSTI)

The engineering of solar power applications, such as photovoltaic energy (PV) or thermal solar energy requires the knowledge of the solar resource available for the solar energy system. This solar resource is generally obtained from datasets, and is either measured by ground-stations, through the use of pyranometers, or by satellites. The solar irradiation data are generally not free, and their cost can be high, in particular if high temporal resolution is required, such as hourly data. In this work, we present an alternative method to provide free hourly global solar tilted irradiation data for the whole European territory through a web platform. The method that we have developed generates solar irradiation data from a combination of clear-sky simulations and weather conditions data. The results are publicly available for free through Soweda, a Web interface. To our knowledge, this is the first time that hourly solar irradiance data are made available online, in real-time, and for free, to the public. The ac...

Leloux, Jonathan; Gonzalez-Bonilla, Loreto

2014-01-01T23:59:59.000Z

111

Brazil Latitude Tilted Solar Radiation Model (10km) from INPE and LABSOLAR  

Open Energy Info (EERE)

10km) from INPE and LABSOLAR 10km) from INPE and LABSOLAR Dataset Summary Description (Abstract): Latitude tilted solar radiation in kWh/m2/day for 1 year organized into cells with 10km x 10km (Purpose): The BRASIL-SR model and the SPRING software (both developed by INPE -National Institute for Space Research) were used to produce the dataset and SHAPE files (Supplemental Information): The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources incountries from European Union. In the second phase, the solar flux estimates providedby the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory

112

Effects of head-up tilt on mean arterial pressure, heart rate, and regional cardiac output distribution in aging rats  

E-Print Network (OSTI)

Approved by: Chair of Committee, Michael Delp Committee Members, Robert Armstrong Judy Muller-Delp Janet r Head of Department, Steve M. Dorman December 2005 Major Subject: Kinesiology iii ABSTRACT Effects of Head-up Tilt... Armstrong, and Dr. Janet Parker for their patience, guidance, and support thoughout the course of this research. vi TABLE OF CONTENTS Page ABSTRACT????????????????????????.. iii ACKNOWLEDGEMENTS??????????????????.. v TABLE OF CONTENTS...

Ramsey, Michael Wiechmann

2006-04-12T23:59:59.000Z

113

Static characteristics and rotordynamic coefficients of a four-pad tilting-pad journal bearing with ball-in-socket pivots in load-between-pad configuration  

E-Print Network (OSTI)

Static characteristics and rotordynamic coefficients were experimentally determined for a four-pad tilting-pad journal bearing with ball-in-socket pivots in loadbetween- pad configuration. A frequency-independent [M]-[C]-[K] model fit...

Harris, Joel Mark

2009-05-15T23:59:59.000Z

114

Theoretical considerations of static and dynamic characteristics of air foil thrust bearing with tilt and slip flow  

Science Journals Connector (OSTI)

The thrust pad of the rotor is used to sustain the axial force generated due to the pressure difference between the compressor and turbine sides of turbomachinery such as gas turbines, compressors, and turbochargers. Furthermore, this thrust pad has a role to maintain and determines the attitude of the rotor. In a real system, it also helps reinforce the stiffness and damping of the journal bearing. This study was performed for the purpose of analyzing the characteristics of the air foil thrust bearing. The model for the air foil thrust bearing used in this study is composed of two parts: one is an inclined plane, which plays a role in increasing the load carrying capacity using the physical wedge effect, and the other is a flat plane. This study mainly consists of three parts. First, the static characteristics were obtained over the region of the thin air film using the finite-difference method (FDM) and the bump foil characteristics using the finite-element method (FEM). Second, the analysis of the dynamic characteristics was conducted by perturbation method. For more exact calculation, the rarefaction gas coefficients perturbed about the pressure and film thickness were taken into consideration. At last, the static and dynamic characteristics of the tilting condition of the thrust pad were obtained. Furthermore, the load carrying capacity and torque were calculated for both tilting and nontilting conditions. From this study, several results were presented: (1) the stiffness and damping of the bump foil under the condition of the various bump parameters, (2) the load carrying capacity and bearing torque at the tilting state, (3) the bearing performance for various bearing parameters, and (4) the effects considering the rarefaction gas coefficients.

Dong-Jin Park; Chang-Ho Kim; Gun-Hee Jang; Yong-Bok Lee

2008-01-01T23:59:59.000Z

115

Tilting for perfusion: Head-up position during cardiopulmonary resuscitation improves brain flow in a porcine model of cardiac arrest  

Science Journals Connector (OSTI)

AbstractIntroduction Cerebral perfusion is compromised during cardiopulmonary resuscitation (CPR). We hypothesized that beneficial effects of gravity on the venous circulation during CPR performed in the head-up tilt (HUT) position would improve cerebral perfusion compared with supine or head-down tilt (HDT). Methods Twenty-two pigs were sedated, intubated, anesthetized, paralyzed and placed on a tilt table. After 6 min of untreated ventricular fibrillation (VF) CPR was performed on 14 pigs for 3 min with an automated CPR device called LUCAS (L) plus an impedance threshold device (ITD), followed by 5 min of L-CPR + ITD at 0° supine, 5 min at 30° HUT, and then 5 min at 30° HDT. Microspheres were used to measure organ blood flow in 8 pigs. L-CPR + ITD was performed on 8 additional pigs at 0°, 20°, 30°, 40°, and 50° HUT. Results Coronary perfusion pressure was 19 ± 2 mmHg at 0° vs. 30 ± 3 at 30° HUT (p Brain–blood flow was 0.19 ± 0.04 ml min?1 g?1 at 0° vs. 0.27 ± 0.04 at 30° HUT (p = 0.01) and 0.14 ± 0.06 at 30° HDT (p = 0.16). Heart blood flow was not significantly different between interventions. With 0, 10, 20, 30, 40 and 50° HUT, ICP values were 21 ± 2, 16 ± 2, 10 ± 2, 5 ± 2, 0 ± 2, ?5 ± 2 respectively, (p brain flow whereas HUT significantly lowered ICP and improved cerebral perfusion. Further studies are warranted to explore this new resuscitation concept.

Guillaume Debaty; Sang Do Shin; Anja Metzger; Taeyun Kim; Hyun Ho Ryu; Jennifer Rees; Scott McKnite; Timothy Matsuura; Michael Lick; Demetris Yannopoulos; Keith Lurie

2014-01-01T23:59:59.000Z

116

Load Tilt and Body Tilt at Bidston  

Science Journals Connector (OSTI)

......to Tidal Load,Memoirs of the Imperial Marine Observatory, 1, No. 1, 1922 June...that the possibilities of error due to wear in the cone and cup should be made known...1932 September. Memoirs of the Imperial Marine Observatory, I, No. I, 1922June. the......

A. T. Doodson; R. H. Corkan

1934-05-01T23:59:59.000Z

117

Study of the interaction of solutes with ?5 (013) tilt grain boundaries in iron using density-functional theory  

SciTech Connect

Substitutional alloying elements significantly affect the recrystallization and austenite-ferrite phase transformation rates in steels. The atomistic mechanisms of their interaction with the interfaces are still largely unexplored. Using density functional theory, we determine the segregation energies between commonly used alloying elements and the ?5 (013) tilt grain boundary in bcc iron. We find a strong solute-grain boundary interaction for Nb, Mo, and Ti that is consistent with experimental observations of the effects of these alloying elements on delaying recrystallization and the austenite-to-ferrite transformation in low-carbon steels. In addition, we compute the solute-solute interactions as a function of solute pair distance in the grain boundary, which suggest co-segregation for these large solutes at intermediate distances in striking contrast to the bulk.

Jin, Hao; Militzer, Matthias [Centre for Metallurgical Process Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada); Elfimov, Ilya [Quantum Matter Institute, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada)

2014-03-07T23:59:59.000Z

118

A self-consistent regime of generation of terahertz radiation by an optical pulse with a tilted intensity front  

SciTech Connect

We derived a self-consistent system of nonlinear wave equations describing the terahertz generation in dielectric uniaxial crystals by optical pulsed radiation with a tilted wavefront. The numerical analysis of the system of equations showed that the generation of a broadband one-period terahertz signal is accompanied by a red shift of the carrier frequency of the optical pulse, the magnitude of the shift being proportional to the pulse intensity. The generation efficiency with respect to energy reached a maximum at a certain distance of propagation in the crystal, after which the efficiency decreased. A satisfactory agreement was obtained between theoretical calculations and experimental data of other investigations. (generation of terahertz radiation)

Bugai, A N; Sazonov, S V; Shashkov, Andrei Yu

2012-11-30T23:59:59.000Z

119

An isoviscous, isothermal model investigating the influence of hydrostatic recesses on a spring-supported tilting pad thrust bearing  

Science Journals Connector (OSTI)

Tilting-pad hydrodynamic thrust bearings are used in hydroelectric power stations around the world, reliably supporting turbines weighing hundreds of tonnes, over decades of service. Newer designs incorporate hydrostatic recesses machined into the sector-shaped pads.With the aid of external oil pressurisation at low rotational speeds, oil film thickness is increased, thereby reducing friction and wear to the benefit of service life and reliability. It follows that older generating plants, lacking such assistance, stand to benefit from being retrofitted with hydrostatic lubrication systems. The design process is not trivial however – the need to increase the groove area to permit spontaneous lifting of the turbine under hydrostatic operation conflicts with the need to preserve performance of the original plane pad design. A haphazardly designed recess can change the pressure distribution of the oil film in such a way as to tilt the pad away from its optimum position. This may lead to reduced oil film thickness and increased temperature, which is concomitant with reduced mechanical efficiency and increased risk of damage to the bearing surfaces. It is therefore, inadvisable to ignore the presence of grooves in simulations. In this work, a numerical study of a sector-shaped pad is undertaken to understand how recess size and shape can affect the performance of a typical bearing. An isoviscous, isothermal model has been used in this instance because the operating conditions of the turbine in question were shown not to be severe enough to warrant the computational expense of a fully coupled thermoelastic hydrodynamic model.

Dennis V. De Pellegrin; Douglas J. Hargreaves

2012-01-01T23:59:59.000Z

120

Measurements Versus Predictions for the Static and Dynamic Characteristics of a Four-pad Rocker-pivot, Tilting-pad Journal Bearing  

E-Print Network (OSTI)

Measured and predicted static and dynamic characteristics are provided for a four-pad, rocker-pivot, tilting-pad journal bearing in the load-on-pad and load-between-pad orientations. The bearing has the following characteristics: 4 pads, .57 pad...

Tschoepe, David 1987-

2012-08-16T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Abstract--We propose a compact tip-reflection fiber-optic vibration sensing system that uses a lateral-offset tilted fiber  

E-Print Network (OSTI)

a lateral-offset tilted fiber grating (TFBG) as sensor head and a vertical-cavity surface-emitting laser the coupling of light from the forward propagating core mode to backward propagating cladding modes and reduces cladding mode resonances appear. Since the response of core mode to external perturbations (temperature

Wai, Ping-kong Alexander

122

Measured and predicted rotordynamic coefficients and static performance of a rocker-pivot, tilt pad bearing in load-on-pad and load-between-pad configurations  

E-Print Network (OSTI)

This thesis presents the static and dynamic performance data for a 5 pad tilting pad bearing in both the load-on-pad (LOP) and the load-between-pad (LBP) configurations over a variety of different loads and speeds. The bearing tested was an Orion...

Carter, Clint Ryan

2009-06-02T23:59:59.000Z

123

Tilt Meters Being Installed  

Science Journals Connector (OSTI)

...excep- tion the fundamental requirement that...interior- wall of boiler-room. This...the buildings safe for operation and providing...amperes for normal operation. A Laon tube...0.1, the fundamental REPORTS AND PAPERS...

124

Simple solar spectral model for direct and diffuse irradiance on horizontal and tilted planes at the earth's surface for cloudless atmospheres  

SciTech Connect

A new, simple model for calculating clear-sky direct and diffuse spectral irradiance on horizontal and tilted surfaces is presented. The model is based on previously reported simple algorithms and on comparisons with rigorous radiative transfer calculations and limited outdoor measurements. Equations for direct normal irradiance are outlined; and include: Raleigh scattering; aerosol scattering and absorption; water vapor absorption; and ozone and uniformly mixed gas absorption. Inputs to the model include solar zenith angle, collector tilt angle, atmospheric turbidity, amount of ozone and precipitable water vapor, surface pressure, and ground albedo. The model calculates terrestrial spectra from 0.3 to 4.0 ..mu..m with approximately 10 nm resolution. A major goal of this work is to provide researchers with the capability to calculate spectral irradiance for different atmospheric conditions and different collector geometries using microcomputers. A listing of the computer program is provided.

Bird, R.; Riordan, C.

1984-12-01T23:59:59.000Z

125

Investigation into the failure cause of a double-acting, leading-edge-groove, tilting-pad thrust bearing. Final report, Feb-Aug 90  

SciTech Connect

This report describes the results of bench tests simulating operation and failure of a thrust bearing used in a gas turbine engine compressor development test rig. The bearing was a double acting, tilting pad with offset pivot, leading edge groove configuration using an AMS 4928 titanium collar and C18200 copper-chrome alloy pads with a No. 2 babbitt face. The bench tests successfully simulated the bearing failure and demonstrated a materials incompatibility. This was supported by visual examination, scanning electron microscopy and X-ray energy spectroscopy. A comparison of the bench test results to the compressor rig bearing failure is provided to support the report conclusions.

Peterson, B.K.

1990-10-01T23:59:59.000Z

126

Experimental frequency-dependent rotordynamic coefficients for a load-on-pad, high-speed, flexible-pivot tilting-pad bearing  

E-Print Network (OSTI)

others. Fig. 1 depicts a schematic of a conventional TP bearing with four pads and the basic geometric characteristics. R+Cp R+Cb R omega beta chi Bottom Pad Detail Geometric Definitions: Pad Preload=1-Cb/Cp Pad Offset=betachi Pad Leading edge... maximum rotordynamic stability [1]. TP bearings differ from fixed geometry journal bearings in that the pads are able to tilt freely about a pivot. The pivot configuration can be spherical, as illustrated in Fig. 1, rocker type, among others...

Rodriguez Colmenares, Luis Emigdio

2004-09-30T23:59:59.000Z

127

The Effect of Magnetic Field Tilt and Divergence on the Mass Flux and Flow Speed in a Line-Driven Stellar Wind  

E-Print Network (OSTI)

We carry out an extended analytic study of how the tilt and faster-than-radial expansion from a magnetic field affect the mass flux and flow speed of a line-driven stellar wind. A key motivation is to reconcile results of numerical MHD simulations with previous analyses that had predicted non-spherical expansion would lead to a strong speed enhancement. By including finite-disk correction effects, a dynamically more consistent form for the non-spherical expansion, and a moderate value of the line-driving power index $\\alpha$, we infer more modest speed enhancements that are in good quantitative agreement with MHD simulations, and also are more consistent with observational results. Our analysis also explains simulation results that show the latitudinal variation of the surface mass flux scales with the square of the cosine of the local tilt angle between the magnetic field and the radial direction. Finally, we present a perturbation analysis of the effects of a finite gas pressure on the wind mass loss rate and flow speed in both spherical and magnetic wind models, showing that these scale with the ratio of the sound speed to surface escape speed, $a/v_{esc}$, and are typically 10-20% compared to an idealized, zero-gas-pressure model.

Stan Owocki; Asif ud-Doula

2003-10-07T23:59:59.000Z

128

Compression and acceleration of electron bunches to high energies in the interference field of intense laser pulses with tilted amplitude fronts: concept and modelling  

SciTech Connect

A new concept of accelerating electrons by laser radiation is proposed, namely, direct acceleration by a laser field under the conditions of interference of several relativistic-intensity laser pulses with amplitude fronts tilted by the angle 45 Degree-Sign with respect to the phase fronts. Due to such interference the traps moving with the speed of light arise that capture the electrons, produced in the process of ionisation of low-density gas by the same laser radiation. The modelling on the basis of solving the relativistic Newton equation with the appropriate Lorenz force shows that these traps, moving in space, successively collect electrons from the target, compress the resulting electron ensemble in all directions up to the dimensions smaller than the wavelength of the laser radiation and accelerate it up to the energies of the order of a few GeV per electron. (extreme light fields and their applications)

Korobkin, V V; Romanovsky, Mikhail Yu; Trofimov, V A; Shiryaev, O B [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2013-03-31T23:59:59.000Z

129

Tilting of the CuO6 octahedra in La1.83-xEu0.17SrxCuO4 as seen by Eu151 Mössbauer spectroscopy  

Science Journals Connector (OSTI)

Eu151 Mössbauer studies of La1.83-xEu0.17SrxCuO4 for 0<~x<~0.26 exhibit a quadrupole interaction at the Eu site whose magnitude eQVzz strongly depends on both the Sr content x and the temperature T. For a fixed temperature, a linear relationship is obtained between the quadrupole interaction and the averaged CuO6 octahedra tilting angle determined from diffraction studies. The unusually large temperature dependence of eQVzz strongly indicates a temperature dependence of the local structure. In contrast to recent studies of the local structure La2CuO4-type superconductors by means of x-ray-absorption and neutron-scattering techniques, our data give strong evidence that the local octahedra tilting in La1.83-xEu0.17SrxCuO4 corresponds well to the average tilting obtained by diffraction techniques.

C. Friedrich; B. Büchner; M. M. Abd-Elmeguid; H. Micklitz

1996-07-01T23:59:59.000Z

130

Project focus: Complete design of an interactive solar panel system to be situated on  

E-Print Network (OSTI)

Project focus: · Complete design of an interactive solar panel system to be situated on top the effective area · Two types of solar cells: · 3 panel configurations: · Real-time power output data Si panels with 30.0o tilt c) 10 CdTe panels; 38.5o tilt · Solar insolation recorder, thermometer

131

LANGEVIN DYNAMICS OF THE TWO STAGE MELTING TRANSITION OF VORTEX MATTER IN Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} IN THE PRESENCE OF STRAIGHT AND OF TILTED COLUMNAR DEFECTS  

SciTech Connect

In this paper we use London Langevin molecular dynamics simulations to investigate the vortex matter melting transition in the highly anisotropic high-temperature superconductor material Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}#14; in the presence of low concentration of columnar defects (CDs). We reproduce with further details our previous results obtained by using Multilevel Monte Carlo simulations that showed that the melting of the nanocrystalline vortex matter occurs in two stages: a first stage melting into nanoliquid vortex matter and a second stage delocalization transition into a homogeneous liquid. Furthermore, we report on new dynamical measurements in the presence of a current that identifies clearly the irreversibility line and the second stage delocalization transition. In addition to CDs aligned along the c-axis we also simulate the case of tilted CDs which are aligned at an angle with respect to the applied magnetic field. Results for CDs tilted by 45{degree} with respect to c-axis show that the locations of the melting and delocalization transitions are not affected by the tilt when the ratio of flux lines to CDs remains constant. On the other hand we argue that some dynamical properties and in particular the position of the irreversibility line should be affected.

GOLDSCHMIDT, YADIN Y.; LIU, Jin-Tao

2007-08-07T23:59:59.000Z

132

On the origins of the ice ages : insolation forcing, age models, and nonlinear climate change  

E-Print Network (OSTI)

This thesis revolves about the relationship between orbital forcing and climate variability. To place paleo and modern climate variability in context, the spectrum of temperature variability is estimated from time-scales ...

Huybers, Peter, 1974-

2004-01-01T23:59:59.000Z

133

Nonlinear response of summer temperature to Holocene insolation forcing in Alaska  

E-Print Network (OSTI)

of British Columbia Okanagan, Kelowna, BC, Canada V1V 1V7 Edited by Mark H. Thiemens, University climate responses to large-scale forcings, such as pre- cessional changes in solar irradiation and interior Canada with cooling over north- eastern Canada. Paleorecords can help elucidate mechanisms leading

Hu, Feng Sheng

134

M/L{sub B} AND COLOR EVOLUTION FOR A DEEP SAMPLE OF M* CLUSTER GALAXIES AT z {approx} 1: THE FORMATION EPOCH AND THE TILT OF THE FUNDAMENTAL PLANE , ,  

SciTech Connect

We have measured velocity dispersions ({sigma}) for a sample of 36 galaxies with J < 21.2 or M{sub r} < -20.6 mag in MS 1054-03, a massive cluster of galaxies at z = 0.83. Our data are of uniformly high quality down to our selection limit, our 16 hr exposures typically yielding errors of only {delta}({sigma}) {approx} 10% for L* and fainter galaxies. By combining our measurements with data from the literature, we have 53 cluster galaxies with measured dispersions, and HST/ACS-derived sizes, colors and surface brightness. This sample is complete for the typical L* galaxy at z {approx} 1, unlike most previous z {approx} 1 cluster samples which are complete only for the massive cluster members (>10{sup 11} M{sub sun}). We find no evidence for a change in the tilt of the fundamental plane (FP). Nor do we find evidence for evolution in the slope of the color-{sigma} relation and M/L{sub B} -{sigma} relations; measuring evolution at a fixed {sigma} should minimize the impact of structural evolution found in other work. The M/L{sub B} at fixed {sigma} evolves by {Delta}log{sub 10} M/L{sub B} = -0.50 {+-} 0.03 between z = 0.83 and z = 0.02 or dlog{sub 10} M/L{sub B} = -0.60 {+-} 0.04 dz, and we find {Delta}(U - V){sub z} = -0.24 {+-} 0.02 mag at fixed {sigma} in the rest frame, matching the expected evolution in M/L{sub B} within 2.25 standard deviations. The implied formation redshift from both the color and M/L{sub B} evolution is z{sub *} = 2.0 {+-} 0.2 {+-} 0.3(sys), during the epoch in which the cosmic star formation activity peaked, with the systematic uncertainty showing the dependence of z{sub *} on the assumptions we make about the stellar populations. The lack of evolution in either the tilt of the FP or in the M/L-{sigma} and color-{sigma} relations imply that the formation epoch depends weakly on mass, ranging from z{sub *} = 2.3{sup +1.3}{sub -0.3} at {sigma} = 300 km s{sup -1} to z{sub *} = 1.7{sup +0.3}{sub -0.2} at {sigma} = 160 km s{sup -1} and implies that the initial mass function similarly varies slowly with galaxy mass.

Holden, B. P.; Illingworth, G. D. [UCO/Lick Observatories, University of California, Santa Cruz, CA 95065 (United States); Van der Wel, A. [Max-Planck Institute for Astronomy, Koenigstuhl 17, D-69117, Heidelberg (Germany); Kelson, D. D. [Observatories of the Carnegie Institution of Washington, Pasadena, CA 91101 (United States); Franx, M., E-mail: holden@ucolick.or, E-mail: gdi@ucolick.or, E-mail: vdwel@mpia.d, E-mail: kelson@obs.carnegiescience.ed, E-mail: franx@strw.leidenuniv.n [Sterrewacht Leiden, P.O. Box 9513, 2300 RA, Leiden (Netherlands)

2010-11-20T23:59:59.000Z

135

Comment on “Tilting of the CuO6 octahedra in La1.83-xEu0.17SrxCuO4 as seen by 151Eu Mössbauer spectroscopy”  

Science Journals Connector (OSTI)

We discuss the different characteristic time scales of the x-ray absorption fine structure (XAFS), ?X, and Mössbauer spectroscopy (MS), ?MS, techniques for structural determination at small-length scales. We show that XAFS and MS can measure different local atomic arrangements in La1.83-xEu0.17SrxCuO4 provided the local structural units are dynamical. Combined knowledge from these complementary techniques is used to determine that the local tilts of the CuO6 octahedra do not vanish with temperature but are dynamic, with the oxygen atoms at the apex positions [O(2)] hopping among local minima of the energy’s surface. Evidence is found for a crossover between different time domains in which the hopping time, ?0, changes from ?0?MS. We conclude that the Mössbauer results [Phys. Rev. B 54, R800 (1996)], contrary to the authors’ conclusions, do not contradict our XAFS results [Phys. Rev. Lett. 76, 439 (1996)].

Daniel Haskel; Edward A. Stern; Hanan Shechter

1998-04-01T23:59:59.000Z

136

Planetary magnetospheres: The double tilt of Uranus  

Science Journals Connector (OSTI)

... once per rotation. Hence periodic magnetic reconnection may allow the greater efficiency in removal of solar wind energy that is required to power magneto-sphere in circulation plus auroral and electroglow emissions ( ...

Fran Bagenal

1986-06-26T23:59:59.000Z

137

Validation of the guidelines for portable meteorological instrument packages. Task IV. Development of an insolation handbook and instrumentation package  

SciTech Connect

The purpose of this report is to show how the objective of developing guidelines for a solar energy related portable meteorology instrument package, under the auspices of the International Energy Agency (IEA), was carried out and preliminarily demonstrated and validated. A project to develop guidelines for such packages was initiated at IEA's Solar Heating and Cooling of Buildings Program Expert's Meeting held in Norrkoping, Sweden in February 1976. An international comparison of resultant devices was conducted on behalf of the IEA at a conference held in Hamburg, Federal Republic of Germany, in 1978. Results of the 1978 Hamburg comparison of two devices and the Swiss Mobile Solar Radiation System, using German meteorological standards, are discussed. The consensus of the IEA Task Group is that the objective of the subtask has been accomplished.

None

1980-10-01T23:59:59.000Z

138

Asia | OpenEI  

Open Energy Info (EERE)

10 10 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281010 Varnish cache server Asia Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Asia DNI GEF GHI insolation NREL solar SWERA TILT UNEP Data application/zip icon Download Shapefile and Cell Regions (zip, 20.2 MiB) text/csv icon Download Data (csv, 960.7 KiB)

139

OpenEI - solar radiation  

Open Energy Info (EERE)

monthly and monthly and annual average latitude tilt GIS data at 40km resolution for Mexico, Central America, and the Caribbean Islands from NREL http://en.openei.org/datasets/node/500 (Abstract):  Monthly Average Solar Resource for flat-plate collectors tilted at latitude, for Mexico, Central America,
and the Caribbean Islands. (Purpose):  Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the

140

Dynamics of Tilt-based Browsing on Mobile Devices  

E-Print Network (OSTI)

with a button- based browser and an iPod wheel. We discuss the usability performance and contrast this with subjective experience from the users. The iPod wheel has significantly poorer performance than button pushing-handed use. An alternative is Apple's iPod click wheel [5] which enables users to scroll the list by rotating

Williamson, John

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Concrete Tilt-up Construction on the Farm.  

E-Print Network (OSTI)

would be possible because of the high labor requirements for construction of the post forms. ACKNOWLEDGMENTS William S. Blair, Jr., Raymond C. Giesecke and Ivan L. Winsett, each of whom received a degree of Master of Science in Agricultural Engi...

Hobgood, Price; Kunze, Otto R.

1957-01-01T23:59:59.000Z

142

Backscattering cross section of a tilted, roughened disk  

Science Journals Connector (OSTI)

An expression is derived for the cross correlation of the electric field scattered from a roughened metallic disk to two points in the far zone. Both exponential and Gaussian surface...

Schertler, Donald J; George, Nicholas

1992-01-01T23:59:59.000Z

143

Tilting Trains: The Italian ETR and the Swedish X-2000  

E-Print Network (OSTI)

Karl. 1991. ’~Regional Train Development in Sweden." Public~ gather speed." Passenger Train Journal 19(2), February. "FS launches high-speed train project." "FS r~aches agreement

Barnett, Roger

1992-01-01T23:59:59.000Z

144

The long time behavior of diffusion in tilted periodic potentials  

E-Print Network (OSTI)

Sep 18, 2013 ... as front propagation describing the evolution of an interface driven by an external force through ... and T is the absolute temperature), and ?W is a standard d-

2013-09-18T23:59:59.000Z

145

A High Resolution Micro-Electro-Mechanical Resonant Tilt Sensor  

E-Print Network (OSTI)

-Int Soc Optical Engineering, Bellingham, 2010. [3] W. Jian, G. Guowei, L. Penghua, The Study on Lange-angle CANBUS 2-axis Inclinometer of Rotary Drilling Rig, 2010 2nd IEEE International Conference on Information Management and Engineering (ICIME 2010...

Zou, Xudong; Thiruvenkatanathan, Pradyumna; Seshia, Ashwin A.

2014-01-01T23:59:59.000Z

146

Performance of the MROI fast tip-tilt correction system  

E-Print Network (OSTI)

to the sub-plate also passes through the insulation and on through a hole in the camera mount to allow the focused UT beam to reach the camera. A window mounted within this tube isolates the air within the camera enclosure from the ambient environment... . Compliant seals surround the tube and sub-plate support pillars, ensuring that any movement of the enclosure is decoupled from the camera and its mount. The camera mount itself is connected to the Nasmyth optical table via a steel interface plate. This uses...

Young, John; Buscher, David; Fisher, Martin; Haniff, Christopher; Rea, Alexander; Seneta, Eugene; Sun, Xiaowei; Wilson, Donald; Farris, Allen; Olivares, Andres

2014-07-15T23:59:59.000Z

147

Vacuum compatible, high-speed, 2-D mirror tilt stage  

DOE Patents (OSTI)

A compact and vacuum compatible magnetic-coil driven tiltable stage that is equipped with a high efficiency reflective coating can be employed as a scanner in EUV applications. The drive electronics for the scanner is fully in situ programmable and rapidly switchable.

Denham; Paul E. (Crockett, CA)

2007-09-25T23:59:59.000Z

148

General Schema for [001] Tilt Grain Boundaries in Dense Packing...  

NLE Websites -- All DOE Office Websites (Extended Search)

as showing the frustration of symmetry caused by the incorporation of point defects (vacancies and impurities). This general model for grain boundary structures can, in principle,...

149

Economic evaluation of a residential photovoltaic system based on a probability model using actual meteorological data  

SciTech Connect

To design a photovoltaic (PV) generation system economically, it is necessary to use date of the total insolation on a horizontal surface. However, such data is only the total daily values and does not represent the power variation caused by the cloud cover. This paper presents the probability method which represents not only the average but also the variance of the PV generation power, and shows simulated results using this methodology. This study's results indicate that the distribution of the PV power divided by the estimated value of the total insolation on a tilted surface is similar to a normal distribution and that a residential (privately-owned) system without storage, whose PV capacity is more than 2 kWp, has little effect upon the reduction of the energy of an average Japanese household.

Sutoh, T.; Suzuki, H.; Sekine, Y.

1987-03-01T23:59:59.000Z

150

solar radiation | OpenEI  

Open Energy Info (EERE)

radiation radiation Dataset Summary Description (Abstract): Monthly Average Solar Resource for flat-plate collectors tilted at latitude, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Source NREL Date Released January 31st, 2004 (10 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords atmospheric water vapor Carribean Central America GEF. latitude tilt GIS Mexico NREL solar solar radiation SWERA TILT UNEP Data application/zip icon Download Shapefile (zip, 241.3 KiB)

151

Smart prevention device for foot infection  

Science Journals Connector (OSTI)

The device "Power Insoles" is an electronic shoe insole that ... throughout the day, and prevent apparition of foot ulcers by informing the patient through biofeedback...

M Rocklinger; P Vacherand; F Brönnimann; A Mathieu; A Stéphane; Z Pataky

2011-06-01T23:59:59.000Z

152

Panel designs and tilting equipment for tiltup concrete construction of farm structures  

E-Print Network (OSTI)

16o f+Oit~ ~eo 18 d 6" e 6' n 0' aine cab ~ aith foa vertical and teer bn'i~ ribo m ccct Ath tea pipes ef ) j6 inch rciafcrc~ bore, ho bar ea y1cc& ia ecch ecrtiml rib eao inch oc1m ~ ccriacc of tho a~4=a oad cas can ploec9 ia tho toy cnd bott... gcnol. into tha dcaircd peci ticsi A vc~ical cQuat--nt la provided to p. . re rain~ cr 1eucrin. ~ tha penal ce cuah rc 8 1/2 1cetes. shia dgu=t~t pcraita tha panel to ba aot cn e bri& lcd' b. hew tha flc m level for daaa in r~~ tata' proof point...

Giesecke, Raymond Clayton

2012-06-07T23:59:59.000Z

153

Deep origin of the Hawaiian tilted plume conduit derived from receiver functions  

Science Journals Connector (OSTI)

......interpreted as a secondary multiple phase from the LAB or Gutenberg discontinuity, whereas the phase at 67 to 68 s (labelled PpPL s) could be explained as a multiple phase from the Lehmann discontinuity at about 185 to 190 km depth. We verify lateral delay......

I. Wölbern; A. W. B. Jacob; T. A. Blake; R. Kind; X. Li; X. Yuan; F. Duennebier; M. Weber

2006-08-01T23:59:59.000Z

154

Elastic wave propagation in anisotropic crustal material possessing arbitrary internal tilt  

Science Journals Connector (OSTI)

......Elastic wave propagation in anisotropic crustal material possessing...symmetry is valid. Additional anisotropic materials such as shales, bedded strata or regularly...tetragonal or orthorhombic anisotropic behaviour rare (e.g. Christensen......

David A. Okaya; Thomas V. McEvilly

2003-05-01T23:59:59.000Z

155

Estimation of the anisotropy parameters of transversely isotropic shales with a tilted symmetry axis  

Science Journals Connector (OSTI)

......spherical and cylindrical anisotropic shale samples. Seismic anisotropy...anisotropy in saturated shale, Geophys. J. Int...pulse-transmission experiments yield anisotropic group or phase velocities...and stress field on shale anisotropy, Geophys......

Dariush Nadri; Joël Sarout; Andrej Bóna; David Dewhurst

2012-08-01T23:59:59.000Z

156

Optimal tilt magnitude determination for aberration-corrected super resolution exit wave function reconstruction  

Science Journals Connector (OSTI)

...Experimental high resolution electron microscopy, 3rd edn. Oxford, UK: Oxford University Press. Thust, A. , M. F. Overwijk, W. J. Coene, and M. Lentzen 1996 Numerical correction of lens aberrations in phase-retrieval HRTEM. Ultramicroscopy...

2009-01-01T23:59:59.000Z

157

E-Print Network 3.0 - automated sequential tilt-series Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

Integration of Stored and Real-time Information Automating COA... eCOA Evaluation Automated Scenario Generation Generic EBO Modeling Capability EBO Simulation...

158

Characterizing the Galactic warp with Gaia – I. The tilted ring model with a twist  

Science Journals Connector (OSTI)

......a clear example of the great benefit of having proper motions; whereas...we restrict the sample to grid points with pole counts higher...since meridian lines in a polar grid converge towards the poles...1981) 7:67. Drimmel R. , Smart R. L., Lattanzi M. G. AA......

Hoda Abedi; Cecilia Mateu; Luis A. Aguilar; Francesca Figueras; Mercè Romero-Gómez

2014-01-01T23:59:59.000Z

159

Multi-Context Photo Browsing on Mobile Devices Based on Tilt Dynamics  

E-Print Network (OSTI)

Cho,S.J. Murray-Smith,R. Kim,Y.B. ACM International Conference Proceeding Series; Vol. 309, Proceedings of the 9th international conference on Human computer interaction with mobile devices and services, http://doi.acm.org/10.1145/1377999.1378006 pp 190-197 ACM Press

Cho, S.J.; Murray-Smith, R.

160

'Tilted' Industrial Electric Rates: A New Negative Variable for Energy Engineers  

E-Print Network (OSTI)

The cost of purchased electricity for industry is rising even faster than for other sectors. Conventional means of reducing power costs include internal techniques like load management, demand controls and energy conservation. External mechanisms...

Greenwood, R. W.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Analysis of flexure pivot tilting pad gas bearings with different damper configurations  

E-Print Network (OSTI)

after seizure occurred while running at 120+ krpm for extended period. (a) Localized heating and micro-welding on circumference of rotor within ?Front? bearing (inset shows magnified view of damaged region). (b) Undamaged rotor within ?Rear...

Rimpel, Aaron Michael

2009-05-15T23:59:59.000Z

162

Measurements of static loading characteristics of a Flexurepivot Tilt Pad Hydrodynamic Bearing  

E-Print Network (OSTI)

and contributions to this research. To all the guys and gal of the Rotordynamics Lab: Miller Robison, Grigoiy Arauz, Jeff Sinclair, Dan Lubell, Jiming Li, Hector Laos, Chrisma Jackson, and Aquiles Lopez - thanks for aII the help during my tests and for making...

Walton, Nicholas Van Edward

2012-06-07T23:59:59.000Z

163

Microsoft Word - Tilted-Rig-TP-Definition-Version1-Aug-14-2012A...  

NLE Websites -- All DOE Office Websites (Extended Search)

motion that produces a rising plume (spike) on the left, and falling plume (bubble) on the right, that are almost symmetric; and 2) a Rayleigh-Taylor driven mixing...

164

Human perception and control of vehicle roll tilt in hyper-gravity  

E-Print Network (OSTI)

Pilots and astronauts experience a range of altered gravity environments in which they must maintain accurate perception and control of vehicle orientation for tasks such as landing and docking. To study sensorimotor ...

Clark, Torin Kristofer

2013-01-01T23:59:59.000Z

165

Construction techniques and costs of tilt-up concrete farm structures  

E-Print Network (OSTI)

in pince+ Bailie (9) used two coats of bond breaking ooagmund to prevent sticking of tim panels to the oasting bed. as may as three panels were cast cn top of each other ~ The J. g. Bann Construction Company (5) granted their steel windows snd doors... spreading eigh". cubic yards of sand over the ouilring site. 3? sand was graded to provide the casting bed for the wall panels as there was no floor slab in this ?tractors, The butter bo-rde anc' string lines were then set. T!w . attsx' were installed...

Winsett, Ivan Lane

2012-06-07T23:59:59.000Z

166

Equatorial Solitary Waves. Part V: Initial Value Experiments, Coexisting Branches, and Tilted-Pair Instability  

Science Journals Connector (OSTI)

A series of high-resolution numerical experiments, augmented by theory, to further explore the dynamics of equatorial dipole vortices (Rossby solitary waves) is performed. When the amplitude is sufficiently large so that the vortices trap fluid ...

John P. Boyd

2002-09-01T23:59:59.000Z

167

Tilting at Modern: Elizabeth Gordon's "The Threat to the Next America"  

E-Print Network (OSTI)

an example of a house that used passive solar heating, andbest houses of the future,? primary among them passive solarHouse I Would Like to Live In After the War,? 31. encouraged passive

Corbett, Kathleen LaMoine

2010-01-01T23:59:59.000Z

168

A strong, highly-tilted interstellar magnetic field near the Solar System  

Science Journals Connector (OSTI)

... hydrogen was not taken into account. Here we report measurements of the deflection of the solar wind plasma flows in the heliosheath to determine the magnetic field strength and orientation in ... We conclude that the interstellar medium field is turbulent or has a distortion in the solar vicinity. The local interstellar medium magnetic field (BISM) is one of the key ...

M. Opher; F. Alouani Bibi; G. Toth; J. D. Richardson; V. V. Izmodenov; T. I. Gombosi

2009-12-24T23:59:59.000Z

169

ASTRONOMICAL THEORY of PALEOCLIMATES September 1425, 2011  

E-Print Network (OSTI)

at equator 5.8 Insolation at MIS1 to MIS11 6.1 Sensitivity to insolation and GHG forcings. Constant orbit, only GHG changes 4. Constant CO2, only insolation changes #12 Ma 6.3a MIS13.1 response to Insolation, GHG and ice sheets 6.1 A cool

170

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network (OSTI)

Solar Rankine thermodynamics matches Californiaconsidered, using average California solar insolation dataelectricity. Solar Rankine thermodynamics matches California

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

171

Diurnal cycle of the Intertropical Convergence Zone in the east Pacific  

E-Print Network (OSTI)

of insolation. Satellite and weather station observationsusing satellite and in situ data, Mon. Weather Rev. , 122,

Bain, C. L; Magnusdottir, G.; Smyth, P.; Stern, H.

2010-01-01T23:59:59.000Z

172

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

South America from NREL South America from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

173

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Central America and the Carribean from NREL Central America and the Carribean from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

174

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

East Asia from NREL East Asia from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

175

Solar: monthly and annual average direct normal (DNI), global horizontal  

Open Energy Info (EERE)

Africa from NREL Africa from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal and tilted flat-plates, and 2-axis tracking concentrating collectors. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to solar collectors. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

176

Modeling and inversion of PS-wave moveout asymmetry for tilted TI media: Part 2 --Dipping TTI layer  

E-Print Network (OSTI)

for anisotropic imaging beneath TTI formations and characterization of dipping fracture systems. Mode-converted PS to the anisotropic parameters. In Part 1 Dewangan and Tsvankin, 2006a , we proposed a modi- fication of the PP + PS to the layer boundaries. Dipping shale layers of this type are commonly ob- Manuscript received by the Editor

Tsvankin, Ilya

177

PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan1  

E-Print Network (OSTI)

the effective medium formed by steeply dipping fracture sets or shale layers. The reflection moveout of PS by the parameter-estimation results. INTRODUCTION Transverse isotropy TI is a common anisotropic symmetry usu- ally

178

Moveout inversion of wide-azimuth P-wave data for tilted TI media Xiaoxiang Wang1  

E-Print Network (OSTI)

to build an accurate initial anisotropic velocity model for processing of wide-azimuth surveys is typical for dipping shale layers

Tsvankin, Ilya

179

Deformation within polar ice sheets: An analysis of the Byrd Station and Camp Century borehole-tilting measurements  

Science Journals Connector (OSTI)

Analysis of the inclinometer surveys of the boreholes at Byrd Station, Antarctica, and Camp Century, Greenland, yields the following results. The measured strain rates at both stations, in ice deposited in the last (Wisconsin) glaciation, reduced to a standard temperature and shear stress, are only about one-third those in the Holocene ice, even though the Wisconsin ice has a strong single-maximum fabric. Variations in strain rate in the Wisconsin ice at Byrd Station are negatively correlated with the number of volcanic dust bands in the ice. It is inferred that the ice below 1800 m at Byrd Station, which has a multiple-maximum fabric, deforms much less readily than the remainder of the ice. A flow model of Nye, with index n = 3, provides a relation between shear strain rate and shear stress that fits the data from both stations satisfactorily, even though the assumption of plane strain is not strictly valid at Byrd Station. A value of flow parameter A fifteen to twenty times that given by recent data compilations and predicted by dislocation theory, has to be used for the Holocene ice. These data cover a stress range (20–45 kPa) lower than in any other field experiment.

W.S.B. Paterson

1983-01-01T23:59:59.000Z

180

Seismic Tilt-noise Measured In-situ By A Mid-size Highly-sensitive Laser Gyroscope  

Science Journals Connector (OSTI)

A mid-size laser gyroscope (sensitivity 2·10-9rad/s /Hz1/2) has been recently installed in the central area of VIRGO gravitational antenna...

Allegrini, Maria; Belfi, Jacopo; Beverini, Nicolo'; Bosi, Filippo; Carelli, Giorgio; Di Virgilio, Angela; Maccioni, Enrico; Passaquieti, Roberto; Stefani, Fabio

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Comments on a paper tilted `The sea transport of vitrified high-level radioactive wastes: Unresolved safety issues`  

SciTech Connect

The cited paper estimates the consequences that might occur should a purpose-built ship transporting Vitrified High Level Waste (VHLW) be involved in a severe collision that causes the VHLW canisters in one Type-B package to spill onto the floor of a major ocean fishing region. Release of radioactivity from VHLW glass logs, failure of elastomer cask seals, failure of VHLW canisters due to stress corrosion cracking (SCC), and the probabilities of the hypothesized accident scenario, of catastrophic cask failure, and of cask recovery from the sea are all discussed.

Sprung, J.L.; McConnell, P.E.; Nigrey, P.J.; Ammerman, D.J. [and others

1997-05-01T23:59:59.000Z

182

Measurement of rotordynamic coefficients for a high-speed flexure pivot tilting-pad bearing(load between pad) configuration  

E-Print Network (OSTI)

] .......................................................................................2 Figure 3. Main test section of the test rig .....................................................................................9 Figure 4. Shaker-stinger configuration (NDE side...)....................................................................10 Figure 5. Static loader assembly (NDE side)..............................................................................11 Figure 6. Thermocouples location on the FPB...

Al-Ghasem, Adnan Mahmoud

2005-08-29T23:59:59.000Z

183

Mechanical and charge transport properties of alkanethiol self-assembled monolayers on Au (111) surface: The Role of Molecular Tilt  

E-Print Network (OSTI)

electronic properties of molecules and the influence of external forces is fundamentalelectronic devices is potentially promising for technological applications and an important focus of fundamental

Qi, Yabing

2007-01-01T23:59:59.000Z

184

DISTRIBUTED ENERGY SYSTEMS IN CALIFORNIA'S FUTURE: A PRELIMINARY REPORT, VOLUME I  

E-Print Network (OSTI)

solar resource, average insolation (solar radiation) in the statesolar resource Insolation in the because of the many climatic zones in the state.States, 1910-1970 Location of Biomass Resources in California Annual VAriation of the Solar

Authors, Various

2010-01-01T23:59:59.000Z

185

Diseño e Implementación de una Plantilla para la medición de Presión Plantar para la Prevención de Ulceraciones en la Patología de Pie Diabético  

Science Journals Connector (OSTI)

This document presents the design and implementation of a prototype to measure plantar pressure (static and dynamic) through an insole. The insole has 16 sensors located in the plantar region (heel, metatarsal...

A. M. Alarcón Cuentas; N. D. Cucho Cóndor…

2013-01-01T23:59:59.000Z

186

AASSSSAATTEEAAGGUUEE BBAARRRRIIEERR IISSLLAANNDD EEDDUUCCAATTIIOONN CCEENNTTEERR  

E-Print Network (OSTI)

2.2 Efficiency Technologies........................................................................................6 3.1.1 Solar Insolation.................................................................................................11 4.1 Efficiency Scenarios

Delaware, University of

187

Recent changes in a remote Arctic lake are unique within the past 200,000 years  

Science Journals Connector (OSTI)

...Geosciences, University of Massachusetts, Amherst, MA 01003...tracked orbitally-driven solar insolation. In recent...tracked orbitally-driven solar insolation. In...tracked orbitally-driven solar insolation. In recent...Canada University of Massachusetts at Amherst United States...

Yarrow Axford; Jason P. Briner; Colin A. Cooke; Donna R. Francis; Neal Michelutti; Gifford H. Miller; John P. Smol; Elizabeth K. Thomas; Cheryl R. Wilson; Alexander P. Wolfe

2009-01-01T23:59:59.000Z

188

NREL GIS Data: Hawaii High Resolution Photovoltaic | OpenEI  

Open Energy Info (EERE)

Photovoltaic Photovoltaic Dataset Summary Description Abstract - Monthly and annual average solar resource potential for the State of Hawaii. Purpose - Provide information on the solar resource potential for Hawaii. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental Info - This data provides monthly average and annual average daily total solar resource averaged over surface cells of 0.1 degrees in both latitude and longitude, or about 10 km in size. This data was developed using the State University of New York/Albany satellite radiation model. This model was developed by Dr. Richard Perez and collaborators at the National Renewable Energy Laboratory and other universities for the U.S. Department of Energy. Specific information about this model can be found in Perez, et al. (2002). This model uses hourly radiance images from geostationary weather satellites, daily snow cover data, and monthly averages of atmospheric water vapor, trace gases, and the amount of aerosols in the atmosphere to calculate the hourly total insolation (sun and sky) falling on a horizontal surface. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalable at a 10km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

189

Two-dimensional model of the air flow and temperature distribution in a cavity-type heat receiver of a solar stirling engine  

SciTech Connect

A theoretical study on the air flow and temperature in the heat receiver, affected by free convection, of a Stirling Engine for a Dish/Stirling Engine Power System is presented. The standard {kappa}-{epsilon} turbulence model for the fluid flow has been used and the boundary conditions employed were obtained using a second level mathematical model of the Stirling Engine working cycle. Physical models for the distribution of the solar insolation from the Concentrator on the bottom and side walls of the cavity-type heat receiver have been taken into account. The numerical results show that most of the heat losses in the receiver are due to re-radiation from the cavity and conduction through the walls of the cavity. It is in the region of the boundary of the input window of the heat receiver where there is a sensible reduction in the temperature in the shell of the heat exchangers and this is due to the free convection of the air. Further, the numerical results show that convective heat losses increase with decreasing tilt angle.

Makhkamov, K.K.; Ingham, D.B.

1999-11-01T23:59:59.000Z

190

GEOPHYSICS, VOL. 66, NO. 3 (MAY-JUNE 2001); P. 904910, 7 FIGS., 3 TABLES. Velocity analysis for tilted transversely isotropic media: A physical  

E-Print Network (OSTI)

in conventional imaging, it is important to be able to recon- struct the velocity model suitable for anisotropic depth migration. Here, we discuss the results of anisotropic pa- rameter estimation on a physical and the anisotropic parameters and . The coefficient is obtained using the travel- times of a wave that crosses

Tsvankin, Ilya

191

Earth-to-deep-space optical communications system with adaptive tilt and scintillation correction by use of near-Earth relay mirrors  

Science Journals Connector (OSTI)

Performance of an Earth-to-deep-space optical telecommunications system is degraded by distortion of the beam as it propagates through the turbulent atmosphere. Conventional approaches...

Armstrong, J W; Yeh, C; Wilson, K E

1998-01-01T23:59:59.000Z

192

Effects of errors in velocity tilt on maximum longitudinal compression during neutralized drift compression of intense beam pulses: I. general description  

E-Print Network (OSTI)

spread, plasma, and solenoidal final focus conditions onfocus has also gone towards space-charge neutralization [1,3,4], where it was shown that plasma

Kaganovich, Igor D.

2014-01-01T23:59:59.000Z

193

Head-up tilt and hyperventilation produce similar changes in cerebral oxygenation and blood volume: an observational comparison study using frequency-domain near-infrared spectroscopy  

E-Print Network (OSTI)

26. Rolfe P. In vivo near-infrared spectroscopy. Annu Revage using phase resolved near infrared spectroscopy. Pediatrin neonates determined by near-infrared time-resolved

2012-01-01T23:59:59.000Z

194

SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979  

E-Print Network (OSTI)

Division of Distributed Solar Technology Contractors' Pro-Division of Distributed Solar Technology Insolation Assess-demonstrating existing solar technology. DOE's San Francisco

Authors, Various

2010-01-01T23:59:59.000Z

195

ENERGY & ENVIRONMENT DIVISION ANNUAL REPORT 1979  

E-Print Network (OSTI)

Division of Distributed Solar Technology Contractors' Pro-Division of Distributed Solar Technology Insolation Assess-view argues that solar technologies should not be developed.

Cairns, E.J.

2010-01-01T23:59:59.000Z

196

AN ANALYSIS OF THE ENERGY IMPACTS OF THE DOF APPROPRIATE ENERGY TECHNOLOGY SMALL GRANTS PROGRAM: METHODS AND RESULTS  

E-Print Network (OSTI)

level of solar insolation in northern New Mexico (Vincent,Mexico has at least 300 small woodworkers who could operate a solar

Lucarelli, Bart

2014-01-01T23:59:59.000Z

197

E-Print Network 3.0 - aqua reci process Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

other cycles 5. Cogeneration and Energy Conservation... and other processes, waste heat recovery, industrial examples 6. Solar Energy - calculation of insolation...

198

DEGRANDPRE, MD, TR HAMMAR, DWR WALLACE, AND CD ...  

Science Journals Connector (OSTI)

Jan 31, 1996 ... Woods Hole, Massachusetts 02543. D. W. R. Wallace and C. D. ..... variability, however, does not correlate with solar insolation measured on a ...

199

E-Print Network 3.0 - appalachian spruce fir Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

topography, and potential insolation on the Summary: United States (Noss et al. 1995; White and Miller 1998). Appalachian montane spruce-fir forests... by wind, with natural...

200

Solar drying of seafood products  

SciTech Connect

The solar drying of seafood products by forced air convection and by direct insolation, as well as hot smoking fish with a solar assisted fish smoker are investigated.

Baird, C.D.; Deng, J.C.; Chau, K.V.; Heinis, J.J.; Perez, M.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

DISTRIBUTED ENERGY SYSTEMS IN CALIFORNIA'S FUTURE: A PRELIMINARY REPORT, VOLUME I  

E-Print Network (OSTI)

Paul Berdahl et al. , California Solar Data Hanual, LawrenceBerkeley Laboratory, California Solar Data Manual, Draft,here. The solar insolation falling upon California is more

Authors, Various

2010-01-01T23:59:59.000Z

202

ORGANIZATIONAL, INTERFACE AND FINANCIAL BARRIERS TO THE COMMERCIAL DEVELOPMENT OF COMMUNITY ENERGY SYSTEMS  

E-Print Network (OSTI)

date. In California, the California Solar Energy industrieswould total $1,400. California Solar credits cover 55% ofstudies of solar insolation, while in California the state

Schladale, R.

2010-01-01T23:59:59.000Z

203

Concentrating Solar Power (Fact Sheet), SunShot Initiative, U...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

concentrating reflectors. The laboratories also perform resource assessment of accurate weather and solar insolation data captured through improved satellite imaging, additional...

204

Deformable geometry design with controlled mechanical property based on 3D printing.  

E-Print Network (OSTI)

??Deformable products exist broadly in different industries. These deformable products undergo deformation to achieve specific mechanical properties. Custom made insoles are applied to redistribute plantar… (more)

Li, Yongqiang

2014-01-01T23:59:59.000Z

205

Technoeconomic Analysis of Photoelectrochemical (PEC)  

E-Print Network (OSTI)

.......................................... 29 3.5 Solar Insolation .................................................. 37 3.6 Solar Shadowing ............................................................................................................ 41 3.6.1 Type 3 Panel Separation Distance for Minimal Shadowing................................... 41

206

NREL GIS Data: Alaska Low Resolution Concentrating Solar Power Resource |  

Open Energy Info (EERE)

Alaska Low Resolution Concentrating Solar Power Resource Alaska Low Resolution Concentrating Solar Power Resource Dataset Summary Description Abstract: Monthly and annual average solar resource potential for Alaska. Purpose: Provide information on the solar resource potential for Alaska. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain. Units are in watt hours.

207

NREL GIS Data: Alaska Low Resolution Photovoltaic Solar Resource | OpenEI  

Open Energy Info (EERE)

8 8 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278078 Varnish cache server NREL GIS Data: Alaska Low Resolution Photovoltaic Solar Resource Dataset Summary Description Abstract: Monthly and annual average solar resource potential for Alaska. Purpose: Provide information on the solar resource potential for Alaska. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

208

NREL GIS Data: Hawaii Low Resolution Concentrating Solar Power Resource |  

Open Energy Info (EERE)

Low Resolution Concentrating Solar Power Resource Low Resolution Concentrating Solar Power Resource Dataset Summary Description Abstract: Monthly and annual average solar resource potential for Hawaii. Purpose: Provide information on the solar resource potential for Hawaii. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

209

Post-glacial redistribution and shifts in productivity of giant kelp forests  

Science Journals Connector (OSTI)

...Beach, California to the US-Mexico border (32.5 N to 33.6...Robertson 1985) and incident solar irradiance. High-frequency...direct relationship between solar insolation and kelp productivity...the peak in late Quaternary solar insolation at 30 (figure-3...

2010-01-01T23:59:59.000Z

210

How warm was the last interglacial? New model–data comparisons  

Science Journals Connector (OSTI)

...consistent with the solar insolation anomalies...a lesser extent over Canada and Europe. They cannot...contrasts and annual solar insolation, with the...in Alaska and central Canada-[56,57]. Boreal...absorption of incoming solar radiation and warming...

2013-01-01T23:59:59.000Z

211

NREL GIS Data: Continental United States Photovoltaic High Resolution |  

Open Energy Info (EERE)

Photovoltaic High Resolution Photovoltaic High Resolution Dataset Summary Description Abstract: Monthly and annual average solar resource potential for 48 Contiguous United States. Purpose: Provide information on the solar resource potential for the 48 contiguous states. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of 0.1 degrees in both latitude and longitude, or about 10 km in size. This data was developed using the State University of New York/Albany satellite radiation model. This model was developed by Dr. Richard Perez and collaborators at the National Renewable Energy Laboratory and other universities for the U.S. Department of Energy. Specific information about this model can be found in Perez, et al. (2002). This model uses hourly radiance images from geostationary weather satellites, daily snow cover data, and monthly averages of atmospheric water vapor, trace gases, and the amount of aerosols in the atmosphere to calculate the hourly total insolation (sun and sky) falling on a horizontal surface. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalable at a 10km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

212

Technical and economic evaluation of the utilization of solar energy at South Africa's SANAE IV base in Antarctica  

Science Journals Connector (OSTI)

The technical and economic feasibility of utilizing solar energy at South Africa's SANAE IV station in Antarctica was evaluated in order to estimate potential financial and external savings, and to alleviate the programme's dependence on the special blend of diesel shipped annually from Cape Town. The average global horizontal and tilted insolation rates at the base were studied, energy consumption data of the station was investigated, technical performance characteristics of devices for harnessing solar energy were assessed and an economic analysis was completed. It was shown that at SANAE IV flat-plate solar thermal collectors could potentially be used in conjunction with the snow smelter (a device that meets the station's fresh water demand) and that photovoltaic modules could feasibly be used to reduce the station's electrical demand. Flat-plate solar thermal collectors could collect solar energy at an average of 3.13 R/kWh (viz. 0.49 US$/kWh) from a suggested 143 m2 array, while comparatively a 40 kWp photovoltaic system would be less economically sound and only able to pay back costs at the end of the system's expected 25-year lifetime, generating electricity at an estimated 3.20 R/kWh (annual electrical consumption at SANAE IV amounts to more than 1062 MWh). The total diesel savings of the solar thermal and photovoltaic systems were estimated at approximately 12 245 and 9958 l, respectively, which represent savings in externalities of R67 338 and R55 879 each.

Jürgen R. Olivier; Thomas M. Harms; Daniël J. Esterhuyse

2008-01-01T23:59:59.000Z

213

Solar modulation of Little Ice Age climate in the tropical Andes  

Science Journals Connector (OSTI)

Solar modulation of Little Ice Age climate in the...A.D.) 1250 and 1810, coincident with solar-activity minima. Temperature declines...planetary insolation, their response to solar irradiance variability is uncertain. Here...

P. J. Polissar; M. B. Abbott; A. P. Wolfe; M. Bezada; V. Rull; R. S. Bradley

2006-01-01T23:59:59.000Z

214

Evaluation on penetration rate of cloud for incoming solar radiation using geostationary satellite data  

Science Journals Connector (OSTI)

Solar surface insolation (SSI) represents how much solar radiance reaches the Earth’s surface in a specified area and is an important parameter in various fields such as surface energy research, meteorology, a...

Jong-Min Yeom; Kyung-Soo Han; Jae-Jin Kim

2012-05-01T23:59:59.000Z

215

Terrestrial aftermath of the Moon-forming impact  

Science Journals Connector (OSTI)

...material that could pass through a water...the global heating rate (insolation plus...global dissipation rate constant. 4. Physics of convection within...averaged tectonic rates would have been...processes and simple physics to illustrate situations...

2014-01-01T23:59:59.000Z

216

Biomarkers and their Raman spectroscopic signatures: a spectral challenge for analytical astrobiology  

Science Journals Connector (OSTI)

...regard to desiccation, high energy UV solar insolation, temperature ranges and chemical...2009 The search for alien life in our solar system: strategies and priorities. Astrobiology...Albuquerque, NM: University of New Mexico Press. 17 Freeman, K . 1983 Cell astrobiology...

2014-01-01T23:59:59.000Z

217

Powering the planet: Chemical challenges in solar energy utilization  

Science Journals Connector (OSTI)

...delivered solar electricity. Compared with fossil energy, solar energy is diffuse, and hence materials costs must be very inexpensive to make a solar-based process economical. Knowing the insolation striking an area of...

Nathan S. Lewis; Daniel G. Nocera

2006-01-01T23:59:59.000Z

218

Secondary Sewage Treatment Versus Ocean Outfalls: An Assessment  

Science Journals Connector (OSTI)

...stable. The membrane will overheat and be de-stroyed...W. A. Beckman, in Solar Ener-gy Thermal Processes (Wiley, New...was supported by a Solar Energy Traineeship grant...have sufficient daytime solar insolation and sufficiently...

Charles B. Officer; John H. Ryther

1977-09-09T23:59:59.000Z

219

Biomarkers and their Raman spectroscopic signatures: a spectral challenge for analytical astrobiology  

Science Journals Connector (OSTI)

...with regard to desiccation, high energy UV solar insolation, temperature ranges and...The search for alien life in our solar system: strategies and priorities...Albuquerque, NM: University of New Mexico Press. 17 Freeman, K . 1983 Cell...

2014-01-01T23:59:59.000Z

220

Vitamin D and Breast Cancer Risk: The NHANES I Epidemiologic Follow-up Study, 1971–1975 to 1992  

Science Journals Connector (OSTI)

...67: 373-378, 1988. 27 Solar Energy Research Institute. Insolation Data Manual and Direct Normal Solar Radiation Data Manual. SERI/TP-220-3880. Golden, CO: Solar Energy Research Institute, 1990. 28...

Esther M. John; Gary G. Schwartz; Darlene M. Dreon; and Jocelyn Koo

1999-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Sun Exposure, Vitamin D Receptor Gene Polymorphisms, and Risk of Advanced Prostate Cancer  

Science Journals Connector (OSTI)

...Res 2001;16:1256-64. 50 Solar Energy Research Institute. Insolation data manual and direct normal solar radiation data manual. SERI/TP-220-3880. Golden (CO): Solar Energy Research Institute; 1990. 51...

Esther M. John; Gary G. Schwartz; Jocelyn Koo; David Van Den Berg; and Sue A. Ingles

2005-06-15T23:59:59.000Z

222

Bacterioplankton Community Shifts in an Arctic Lake Correlate with Seasonal Changes in Organic Matter Source  

Science Journals Connector (OSTI)

...bacterial production beneath the...terrestrial organic matter (33...terrestrial organic matter diminishes...to weeks, solar insolation...Phytoplankton production reaches its...Bacterioplankton production in humic Lake...of bacterial cells and input of allochthonous organic carbon. Microb...

Byron C. Crump; George W. Kling; Michele Bahr; John E. Hobbie

2003-04-01T23:59:59.000Z

223

Multidecadal to multicentury scale collapses of Northern Hemisphere monsoons over the past millennium  

Science Journals Connector (OSTI)

...Geosciences, University of Massachusetts, Amherst, MA 01003; anddDepartment...Super Drought, coincide with solar insolation minima, suggesting that solar forcing of sea surface and atmospheric...isotopes ( 10 Be)-based total solar irradiance (TSI) data...

Yemane Asmerom; Victor J. Polyak; Jessica B. T. Rasmussen; Stephen J. Burns; Matthew Lachniet

2013-01-01T23:59:59.000Z

224

Glacier loss on Kilimanjaro continues unabated  

Science Journals Connector (OSTI)

...solar radiation (insolation) and net solar radiation (caused...accuracy by members of the University of Massachusetts field team. For the 2006 mapping...8 Molg T Hardy DR Kaser G ( 2003 ) Solar-radiation maintained glacier recession...

L. G. Thompson; H. H. Brecher; E. Mosley-Thompson; D. R. Hardy; B. G. Mark

2009-01-01T23:59:59.000Z

225

Synchronous interhemispheric Holocene climate trends in the tropical Andes  

Science Journals Connector (OSTI)

...Polissar PJ ( 2006 ) Solar modulation of Little Ice Age climate...dissertation (Univ of Massachusetts, Amherst, MA...Geosciences, University of Massachusetts. The authors declare...orbitally-forced changes in solar insolation. Humid...dissertation (Univ of Massachusetts, Amherst, MA...

Pratigya J. Polissar; Mark B. Abbott; Alexander P. Wolfe; Mathias Vuille; Maximiliano Bezada

2013-01-01T23:59:59.000Z

226

Space observations of cold-cloud phase change  

Science Journals Connector (OSTI)

...Planetary Sciences, Massachusetts Institute of Technology...be suitable for the solar insolation used...global and annual mean solar radiation value, 340...smoke and dust upon solar radiation...Planetary Sciences, Massachusetts Institute of Technology...

Yong-Sang Choi; Richard S. Lindzen; Chang-Hoi Ho; Jinwon Kim

2010-01-01T23:59:59.000Z

227

Enterococci in the Environment  

Science Journals Connector (OSTI)

...events (including high-flow, wind, and erosional conditions...human and animal (including wildlife) waste (Table 1 and Fig...height, solar insolation, and wind direction, and the combination...particle-attached bacteria, and wind direction influences the advection...

Muruleedhara N. Byappanahalli; Meredith B. Nevers; Asja Korajkic; Zachery R. Staley; Valerie J. Harwood

2012-12-01T23:59:59.000Z

228

The Deep Ocean During the Last Interglacial Period  

Science Journals Connector (OSTI)

...models with the insolation values for 126,000 years before the present (supporting online text). We used two Earth System models of intermediate complexity: CLIMBER-2 (26) and LOVECLIM (27). In CLIMBER-2, the ocean is represented by three...

J. C. Duplessy; D. M. Roche; M. Kageyama

2007-04-06T23:59:59.000Z

229

Assessing Vehicle Electricity Demand Impacts on California Electricity Supply  

E-Print Network (OSTI)

Palm Springs solar insolation, and California electricityConcentrating Solar Power in California, NREL/SR-550-39291,generation from wind and solar in California could be very

McCarthy, Ryan W.

2009-01-01T23:59:59.000Z

230

Return on capital and earned carbon credit by hybrid solar Photovoltaic—wind turbine generators  

Science Journals Connector (OSTI)

This paper presents a methodology to optimise a hybrid solar Photovoltaic—wind turbine generator for the villages situated in ... of India. Owing to good insolation and wind density, the hybrid system composed of...

Prabhakant; Basant Agrawal; G. N. Tiwari

2010-03-01T23:59:59.000Z

231

Heat Transfer Reduction Across the Walls of Refrigerated Van Trailers by the Application of Phase Change Material  

E-Print Network (OSTI)

. The technology was tested in similar days in terms of temperature and solar insolation. The relevant variables that were monitored were the heat flux across the walls of the simulators and temperatures, including surface and indoor air temperatures. Other...

Ahmed, Mashud

2009-03-13T23:59:59.000Z

232

Hadley Cell Dynamics in a Virtually Dry Snowball Earth Atmosphere  

Science Journals Connector (OSTI)

The Hadley cell of a virtually dry snowball Earth atmosphere under equinox insolation is studied in a comprehensive atmospheric general circulation model. In contrast to the Hadley cell of modern Earth, momentum transport by dry convection, which ...

Aiko Voigt; Isaac M. Held; Jochem Marotzke

2012-01-01T23:59:59.000Z

233

Diurnal Characteristics of Precipitation Features Over the East Pacific: A Comparison of the EPIC and TEPPS Regions  

E-Print Network (OSTI)

over the central American land mass. Sub-MCS features in both regions have a broad peak extending change in solar insolation (Hendon and Woodberry, 1993). Indeed, it has been argued that the ability

Rutledge, Steven

234

NREL GIS Data: Continental United States High Resolution Concentrating  

Open Energy Info (EERE)

High Resolution Concentrating High Resolution Concentrating Solar Power Dataset Summary Description Abstract: Monthly and annual average solar resource potential for the lower 48 states of the United States of America. Purpose: Provide information on the solar resource potential for the for the lower 48 states of the United States of America. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

235

Research Highlight  

NLE Websites -- All DOE Office Websites (Extended Search)

Madden-Julian Oscillation Heating: to Tilt or Not to Tilt For original submission and image(s), see ARM Research Highlights http:www.arm.govsciencehighlights Research...

236

E-Print Network 3.0 - acionamentos eletricos uma Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

pelo paciente. Os traados... Inclinao Semi-ortosttica Tilt Table Test O Tilt Test uma forma de provocar a sncope neuromediada. 60... mecanismo, stio, e...

237

MATHEMATICAE On the tameness of trivial extension algebras  

E-Print Network (OSTI)

of an alge- bra A, a tilting module TA and B = End T. For a tilting triple (B, T, A), Tachikawa and Wakamatsu

de la Peña, José Antonio

238

1  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerosols and the Residual Clear-Sky Aerosols and the Residual Clear-Sky Insolation Discrepancy T. P. Charlock National Aeronautics and Space Administration Langley Research Center Hampton, Virginia F. G. Rose and D. A. Rutan Analytical Services and Materials, Inc. Hampton, Virginia Abstract The "clear-sky insolation discrepancy" surfaced a few years ago: several well-regarded theoretical simulations (sound radiative transfer codes and carefully measured inputs for them) produced values for clear-sky shortwave (SW) insolation that exceeded measurements from 20 to 30 Wm -2 . Now, by both carefully screening (Long-Ackerman) the radiometer observations and including the record of the newly installed Eppley Black and White (B&W) pyranometer, we find theory exceeding observations by

239

SAFETY SHOE ISSUANCE FORM  

NLE Websites -- All DOE Office Websites (Extended Search)

SAFETY SHOE ISSUANCE FORM SAFETY SHOE ISSUANCE FORM The employee named below is authorized to purchase one pair of protective footwear, rated by ASTM F 2413-05 (or ANSI Z41-1999) to protect against workplace hazards. The Laboratory will subsidize this protective footwear issuance up to the authorized annual limit of $150.00. â–¡ The employee named below is authorized to purchase one pair of fatigue reducing shoe insoles. The Laboratory will subsidize this shoe insole issuance up to the authorized annual limit of $35.00. Note: Box must be checked to indicate supervisor approval of the purchase of fatigue reducing shoe insoles. Employee Name:__________________________ Project ID Number:__________ Employee ID Number:______________________ Payroll Deduction:___________

240

Regional variations of days of autonomy for solar energy applications  

SciTech Connect

A problem faced by designers of stand-alone solar installations is the sizing of the collector area and storage capacity. From a curve of the minimum possible insolation over any period of days for a given site, a functional relationship between the collector-area and storage-capacity that provides a 0% probability of not meeting load (PNML) can be derived. This permits evaluating the regional variations in days-of-autonomy required to provide 100% reliability. Such variations are shown for Texas based on recent insolation data.

Grindle, E. II; Vliet, G.C.

1999-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Optimal operating conditions and configurations for humidification-dehumidification desalination cycles  

E-Print Network (OSTI)

efficiency by recapturing this energy, by separating the evaporation and condensation processes maximum system temperature out outlet p product/condensate total sum of all components trans transferred w have high solar insolation, which suggests that solar powered desalination could be very beneficial

Lienhard V, John H.

242

Climate sensitivity, sea level and atmospheric carbon dioxide  

Science Journals Connector (OSTI)

...annual sea surface temperatures ranging from 0C to...continual high-frequency temperature oscillations, which...Earth is closest to the Sun. The slowly changing...affect the seasonal distribution of insolation-[27...synchronously with global temperature during the past 800000...

2013-01-01T23:59:59.000Z

243

ADAPTIVE CONTROL SYSTEM FOR ACTIVE ANKLE-FOOT ORTHOSIS FOR ANKLE ASSISTING AND REHABILITATION  

E-Print Network (OSTI)

ADAPTIVE CONTROL SYSTEM FOR ACTIVE ANKLE-FOOT ORTHOSIS FOR ANKLE ASSISTING AND REHABILITATION ADAPTIVE CONTROL SYSTEM FOR ACTIVE ANKLE-FOOT ORTHOSIS FOR ANKLE ASSISTING AND REHABILITATION Ivanka Veneva]. The sensor system has mounted into two basic components: insole for the healthy leg and ankle- foot orthoses

Mustakerov, Ivan

244

CONTROL SYSTEM FOR ACTIVE ANKLE-FOOT ORTHOSIS AND GAIT ANALYSIS  

E-Print Network (OSTI)

CONTROL SYSTEM FOR ACTIVE ANKLE-FOOT ORTHOSIS AND GAIT ANALYSIS CONTROL SYSTEM FOR ACTIVE ANKLE system has mounted into two basic components: insole for the healthy leg and ankle-foot orthoses. Proposed ankle-foot orthosis is with one degree of freedom which foot segment is connected to the shank

Mustakerov, Ivan

245

Pressures on the marine environment and the changing climate of ocean biogeochemistry  

Science Journals Connector (OSTI)

...to increases or decreases in solar insolation through altered rates...contribute and include variations in solar radiation, deviations in the...the Black Sea, the Gulf of Mexico and East China Sea, among others...2007 Analysis of a potential solar radiation dose-dimethylsulfide-cloud...

2012-01-01T23:59:59.000Z

246

The influence of land-use change and landscape dynamics on the climate system: relevance to climate-change policy beyond the radiative effect of greenhouse gases  

Science Journals Connector (OSTI)

...to anthropogenic aerosols, solar variation and several of the...28 Guatemala 2 542 32 731 0 Mexico 2 441 20 11 110 30 Belize 1...changes the partitioning of solar insolation into its sensible...Earth's surface, QS is the solar irradiance, A is the surface...

2002-01-01T23:59:59.000Z

247

Photovoltaics Life Cycle Analysis  

E-Print Network (OSTI)

Metrics of Life-Cycle Performance Energy Payback Times (EPBT) Greenhouse Gas Emissions (GHG) Toxic Gases #12;6 Life Cycle GHG Emissions ­EuropeLife Cycle GHG Emissions ­Europe Insolation: 1700 kwh/m2-yr 0 10 #12;7 Life Cycle GHG Emissions ­Comparison with Conventional Technologies Life Cycle GHG Emissions

248

Testing and Diagnosing the Ability of the Bureau of Meteorology’s Numerical Weather Prediction Systems to Support Prediction of Solar Energy Production  

Science Journals Connector (OSTI)

The ability of the Australian Bureau of Meteorology’s numerical weather prediction (NWP) systems to predict solar exposure (or insolation) was tested, with the aim of predicting large-scale solar energy several days in advance. The bureau’s ...

Paul A. Gregory; Lawrie J. Rikus; Jeffrey D. Kepert

2012-09-01T23:59:59.000Z

249

1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society  

E-Print Network (OSTI)

1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society NOTES instability: the latter predominantly generates the seasonal phase locking of ENSO but has little effect periodic forcing, such as the annual cycle of solar insolation or monsoon wind. Using a conceptual ENSO

Wisconsin at Madison, University of

250

Is there life on ... Titan?  

Science Journals Connector (OSTI)

......seasonal modulations of solar insolation as a function...subsurface ocean, to the organic-rich surface environment...study of the likely organic chemical processes...demonstrated the production of tholins (complex...recognized that the organic chemistry in Titan's...using a diamond anvil cell. This extends the......

Lucy H Norman

2011-02-01T23:59:59.000Z

251

Storms, polar deposits and the methane cycle in Titan's atmosphere  

Science Journals Connector (OSTI)

...systems indicate the production of virga, with...daily averaged solar insolation (Brown...mid-troposphere convection cell evident from the...Sun lowers the solar heating two orders...methane and the production of haze causes...2008Titan's inventory of organic surface materials...application to the outer solar system. Astrophys...

2009-01-01T23:59:59.000Z

252

A simple model of multiple climate regimes Kerry Emanuel  

E-Print Network (OSTI)

, and Climate, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA Received 28 June 2001 to a roughly 30% increase in solar insolation over the life of the planet. To this enigma may be added to produce multiple equilibrium states for the same solar forcing. Here we present a simple model

Emanuel, Kerry A.

253

Hans Renssen Hugues Goosse Thierry Fichefet Victor Brovkin Emmanuelle Driesschaert Frank Wolk  

E-Print Network (OSTI)

feedbacks (ice-albedo and sea-ice insulation) that lead regionally to an amplification of the thermal-sea ice-ocean-vegetation model Received: 23 March 2004 / Accepted: 10 September 2004 / Published online: 9 atmosphere-sea ice-ocean-vegetation model ECBilt- CLIO-VECODE. Only long-term changes in insolation

Renssen, Hans

254

SPECIES PROFILE New Hampshire Wildlife Action PlanA-276  

E-Print Network (OSTI)

SPECIES PROFILE New Hampshire Wildlife Action PlanA-276 Federal Listing: Not listed State Listing caused by direct solar insolation and benefit from the cooling effects of wind caused by evaporative, as well as benefits from the cooling effects of wind. Eastern Red Bat Lasiurus borealis Roost trees

New Hampshire, University of

255

Use of Visible Geostationary Operational Meteorological Satellite Imagery in  

E-Print Network (OSTI)

10 Use of Visible Geostationary Operational Meteorological Satellite Imagery in Mapping Reference is typically computed at specific locations based on weather station data. Estimates of incoming solar radiation (insolation, or Rs) have been made from geostationary satellite data over a 14-year period (1 June

256

Polar and brown bear genomes reveal ancient admixture and demographic footprints of past climate change  

Science Journals Connector (OSTI)

...sizes (Ne ), consistent with mis-specification of the demographic model and...shorter chain fatty acids is important for thermal insolation in marine mammals due to...their blubber is not as efficient at insulation compared to seals (93). We speculate...

Webb Miller; Stephan C. Schuster; Andreanna J. Welch; Aakrosh Ratan; Oscar C. Bedoya-Reina; Fangqing Zhao; Hie Lim Kim; Richard C. Burhans; Daniela I. Drautz; Nicola E. Wittekindt; Lynn P. Tomsho; Enrique Ibarra-Laclette; Luis Herrera-Estrella; Elizabeth Peacock; Sean Farley; George K. Sage; Karyn Rode; Martyn Obbard; Rafael Montiel; Lutz Bachmann; Ólafur Ingólfsson; Jon Aars; Thomas Mailund; Øystein Wiig; Sandra L. Talbot; Charlotte Lindqvist

2012-01-01T23:59:59.000Z

257

ESTIMATING GROUND-LEVEL SOLAR RADIATION AND EVAPOTRANSPIRATION IN PUERTO RICO  

E-Print Network (OSTI)

REMOTE SENSING Eric. W. Harmsen1 , John Mecikalski2 , Vanessa Acaron3 and Jayson Maldonado3 1 Department insolation, other meteorological variables (e.g., net radiation, soil heat flux, air temperature dew point remote sensing product. As a practical example of the use of the methodology, the Hargraeves-Samani ETo

Gilbes, Fernando

258

Clim. Past, 4, 205213, 2008 www.clim-past.net/4/205/2008/  

E-Print Network (OSTI)

precipitation as snowfall. (2) An intensification of the winter meridional insolation gradient strengthens zonal precipitation. (3) An increase in the summer meridional in- solation gradient enhances summer eddy activity this paradox, two types of hypotheses have been proposed, (i) those that are generally consistent

Poulsen, Chris J.

259

Generated using V3.1.2 of the official AMS LATEX templatejournal page layout FOR AUTHOR USE ONLY, NOT FOR SUBMISSION! Hadley circulation response to orbital precession. Part II: Subtropical continent  

E-Print Network (OSTI)

, NOT FOR SUBMISSION! Hadley circulation response to orbital precession. Part II: Subtropical continent Timothy M and annual-mean Hadley circulation to orbital precession is examined in an idealized atmospheric general precession does not affect annual-mean insolation, the annual-mean Hadley circulation does respond to orbital

Heaton, Thomas H.

260

Blandford MTA Tower Wind Monitoring This document provides information not repeated in the monthly wind monitoring  

E-Print Network (OSTI)

on a regular basis. The logger samples wind speed and direction once every two seconds. These are then combined applicable): wind speed, wind speed standard deviation, wind direction, temperature, and solar insolation. F1 ranges applied for high and low wind speeds. A wind direction standard Blandford MTA Tower Wind

Massachusetts at Amherst, University of

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Marion Meteorological Tower Wind Monitoring This document provides information not repeated in the monthly wind monitoring  

E-Print Network (OSTI)

. The logger samples wind speed and direction once every two seconds. These are then combined into 10-minute): wind speed, wind speed standard deviation, wind direction, temperature, and solar insolation. F1 > TF1 applied for high and low wind speeds. A wind direction standard Marion Met Tower Wind Monitoring #12

Massachusetts at Amherst, University of

262

Changes in the hydrological cycle, ocean circulation, and carbon/ nutrient cycling during the last interglacial and glacial transition  

E-Print Network (OSTI)

; published 27 October 2007. [1] A complex Earth system model has been forced by insolation changes system model with prognostic atmospheric pCO2 is integrated for the first time over 20,000 a of the last an important benchmark for the validation of current climate models. [3] In this study a fully complex Earth

Winguth, Arne

263

Paleoecological evidence for abrupt cold reversals during peak Holocene warmth on Baffin Island, Arctic Canada  

E-Print Network (OSTI)

, Arctic Canada Yarrow Axford a, , Jason P. Briner b , Gifford H. Miller a , Donna R. Francis c a Institute sediments is used to infer temperature changes at a small lake in Arctic Canada through the Holocene. Early). Superimposed over known changes in solar insolation through the Holocene are a number of less understood

Briner, Jason P.

264

Factors Affecting the Efficiency of Carbon Monoxide Photoproduction in the St. Lawrence Estuarine System (Canada)  

Science Journals Connector (OSTI)

Factors Affecting the Efficiency of Carbon Monoxide Photoproduction in the St. Lawrence Estuarine System (Canada) ... The solar insolation-weighted mean apparent quantum yield of CO (?CO) decreased as much as fourfold with increasing salinity and showed a strong positive correlation with the dissolved organic carbon-specific absorption coefficient at 254 nm. ...

Yong Zhang; Huixiang Xie; Guohua Chen

2006-11-01T23:59:59.000Z

265

OTilt | Open Energy Information  

Open Energy Info (EERE)

OTilt OTilt Jump to: navigation, search Tool Summary LAUNCH TOOL Name: oTilt Agency/Company /Organization: Naveed ur Rehman Sector: Energy Focus Area: - Solar PV Resource Type: Software/modeling tools User Interface: Website Complexity/Ease of Use: Simple Website: www.otilt.com Web Application Link: www.otilt.com Cost: Free References: DEVELOPMENT OF SIMULATION TOOL FOR FINDING OPTIMUM TILT ANGLES FOR SOLAR COLLECTORS[1] Logo: oTilt oTilt is an optimum tilt angle calculator for solar collectors. Details oTilt is an online tool for quickly determining the optimum tilt angles for solar collectors. Site can be located in an integrated Google map, searching it using keywords (e.g. Central Park, New York) or by directly entering latitude and longitude. oTilt determines the optimum monthly,

266

Research Highlight  

NLE Websites -- All DOE Office Websites (Extended Search)

Madden-Julian Oscillation Heating: to Tilt or Not to Tilt Download a printable PDF Submitter: Schumacher, C., Texas A&M University Area of Research: Cloud Processes Working...

267

On the performance of the flat plate solar heat collector  

Science Journals Connector (OSTI)

A flat plate heat collector was constructed for the purpose of heating water by solar energy. It was erected facing south, tilted to the horizontal at the optimum tilt angle, and tested ... was found, for the dim...

M. K. Elnesr; A. M. Khalil

1965-01-01T23:59:59.000Z

268

E-Print Network 3.0 - attenuated total internal Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

cannot be regulated, which requires the shade and tilt attenuation... t for this agent's solar panel, reduced by the attenuation from clouds (C(t)), shade (S(t, l)) and the tilt...

269

High-resolution x-ray diffraction microscopy of specifically labeled yeast cells (CXIDB ID 4)  

DOE Data Explorer (OSTI)

This is the first of five exposures of the same sample at different tilts. This one is at +0 degrees tilt. Check CXI IDs 4 to 8 for the complete set.

Nelson, Johanna

270

High-resolution x-ray diffraction microscopy of specifically labeled yeast cells (CXIDB ID 7)  

DOE Data Explorer (OSTI)

This is the fourth of five exposures of the same sample at different tilts. This one is at -15 degrees tilt. Check CXI IDs 4 to 8 for the complete set.

Nelson, Johanna

271

High-resolution x-ray diffraction microscopy of specifically labeled yeast cells (CXIDB ID 8)  

DOE Data Explorer (OSTI)

This is the fifth of five exposures of the same sample at different tilts. This one is at -30 degrees tilt. Check CXI IDs 4 to 8 for the complete set.

Nelson, Johanna

272

High-resolution x-ray diffraction microscopy of specifically labeled yeast cells (CXIDB ID 5)  

DOE Data Explorer (OSTI)

This is the second of five exposures of the same sample at different tilts. This one is at +15 degrees tilt. Check CXI IDs 4 to 8 for the complete set.

Nelson, Johanna

273

High-resolution x-ray diffraction microscopy of specifically labeled yeast cells (CXIDB ID 6)  

DOE Data Explorer (OSTI)

This is the third of five exposures of the same sample at different tilts. This one is at +30 degrees tilt. Check CXI IDs 4 to 8 for the complete set.

Nelson, Johanna

274

Installation of the FEI Osirus TEM in the YINQE lab  

E-Print Network (OSTI)

Double-tilt cryo holder #12;TEM enclosure from Midwest Cleanroom Associates #12;The enclosure is needed

Haller, Gary L.

275

Tracks of dissolved minerals Pictures from Opportunity's panoramic camera and microscopic  

E-Print Network (OSTI)

. The rover's position tilted its solar panels toward the Sun to maintain enough solar power for Spirit

Waliser, Duane E.

276

Compound floating pivot micromechanisms  

DOE Patents (OSTI)

A new class of tilting micromechanical mechanisms have been developed. These new mechanisms use compound floating pivot structures to attain far greater tilt angles than are practical using other micromechanical techniques. The new mechanisms are also capable of bi-directional tilt about multiple axes.

Garcia, Ernest J. (Albuquerque, NM)

2001-04-24T23:59:59.000Z

277

IMPACT OF MAGNETIC ENVIRONMENT ON THE GENERATION OF HIGH-ENERGY NEUTRONS AT THE SUN  

E-Print Network (OSTI)

the observed large tilt of magnetic field lines at footpoints of flare magnetic loops. Results of the new calculations are compared with both previous calculations and observations. The tilt of magnetic field lines of strongly tilted magnetic fields at the flare site. We start with analysis of Big Bear Solar Observatory

Usoskin, Ilya G.

278

Photovoltaics Economic Calculator (United States) | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Economic Calculator (United States) Photovoltaics Economic Calculator (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaics Economic Calculator (United States) Focus Area: Solar Topics: System & Application Design Website: instance.celadonapps.com/insolation/insolation.html Equivalent URI: cleanenergysolutions.org/content/photovoltaics-economic-calculator-uni Web-based tool that allows users to describe their solar system in detail and provides a detailed breakdown of power production and system economics. It uses the TMY2 solar data from the United States National Renewable Energy Laboratory's Renewable Resource Data Center. This model is appropriate for U.S.-based users, but it could also serve as an adaptable model example for other countries. References

279

NEWTON, Ask a Scientist at Argonne National Labs  

NLE Websites -- All DOE Office Websites (Extended Search)

Insolation as Percent of Total Solar Output Insolation as Percent of Total Solar Output Name: Terry Status: student Grade: 9-12 Country: USA Date: Spring 2012 Question: What percentage of the sun's total output do we actually receive on Earth? Replies: Terry, First, imagine a sphere around the Sun with a radius equal to the distance of the Sun to the Earth. Using geometry, calculate the total surface area of this sphere (AS = 4 pr r[of our imagined sphere]^2). The portion of this area that the Earth takes up is the area of the cross-section of the Earth (AE = pi r[of Earth]^2). Dividing AE by AS tells us what fraction of the Sun's output (assuming it is equally dispersed to the surface of our hypothetical sphere) reaches the Earth. Multiplying this by 100 gives percent. Greg (Roberto Gregorius) Canisius College

280

Evaluation of phase change materials for thermal regulation enhancement of building integrated photovoltaics  

Science Journals Connector (OSTI)

Regulating the temperature of building integrated photovoltaics (BIPV) using phase change materials (PCMs) reduces the loss of temperature dependent photovoltaic (PV) efficiency. Five \\{PCMs\\} were selected for evaluation all with melting temperatures ?25 ± 4 °C and heat of fusion between 140 and 213 kJ/kg. Experiments were conducted at three insolation intensities to evaluate the performance of each PCM in four different PV/PCM systems. The effect on thermal regulation of PV was determined by changing the (i) mass of PCM and (ii) thermal conductivities of the PCM and PV/PCM system. A maximum temperature reduction of 18 °C was achieved for 30 min while 10 °C temperature reduction was maintained for 5 h at ?1000 W/m2 insolation.

A. Hasan; S.J. McCormack; M.J. Huang; B. Norton

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Control scheme for power modulation of a free piston Stirling engine  

SciTech Connect

This patent describes a control system for power modulation of a free piston Stirling engine. It comprises: a receiver adapted to absorb solar energy and to convert the solar energy into thermal energy; a power module comprising a displacer type free piston Stirling engine having power and displacer pistons, and a linear alternator connected to the engine, the power module adapted to receive and to convert the thermal energy into electrical energy; a utility grid adapted to receive the electrical energy from the power module; an autotransformer connected in series between the linear alternator and the grid, the autotransformer being connected by feedback means to the receiver so that a change in solar insolation to the receiver varies the autotransformer turns ratio thus changing the linear alternator's terminal voltage and changing power piston and displacer piston amplitude accordingly to maintain a high engine efficiency cycle over a large operating range for solar insolation absorbed by the receiver.

Dhar, M.

1989-10-17T23:59:59.000Z

282

Evaluation of phase change materials for thermal regulation enhancement of building integrated photovoltaics  

SciTech Connect

Regulating the temperature of building integrated photovoltaics (BIPV) using phase change materials (PCMs) reduces the loss of temperature dependent photovoltaic (PV) efficiency. Five PCMs were selected for evaluation all with melting temperatures {proportional_to}25 {+-} 4 C and heat of fusion between 140 and 213 kJ/kg. Experiments were conducted at three insolation intensities to evaluate the performance of each PCM in four different PV/PCM systems. The effect on thermal regulation of PV was determined by changing the (i) mass of PCM and (ii) thermal conductivities of the PCM and PV/PCM system. A maximum temperature reduction of 18 C was achieved for 30 min while 10 C temperature reduction was maintained for 5 h at -1000 W/m{sup 2} insolation. (author)

Hasan, A.; Norton, B. [Dublin Energy Lab., Focas Institute, School of Physics, Dublin Institute of Technology, Kevin St., Dublin 8 (Ireland); McCormack, S.J. [Department of Civil, Structure and Environmental Engineering, Trinity College Dublin, Dublin 1 (Ireland); Huang, M.J. [Centre for Sustainable Technologies, University of Ulster, Newtownabbey, N. Ireland, BT370QB (United Kingdom)

2010-09-15T23:59:59.000Z

283

CANCELLED: From Energy Conscious Buildings to Climate-Sensitive Urban  

NLE Websites -- All DOE Office Websites (Extended Search)

CANCELLED: From Energy Conscious Buildings to Climate-Sensitive Urban CANCELLED: From Energy Conscious Buildings to Climate-Sensitive Urban Design Speaker(s): Edna Shaviv Date: March 14, 2006 - 12:00pm Location: Bldg. 90 The consideration of solar rights in urban design is essential in order to allow passive heating of buildings in winter and to improve the comfort conditions of people in the street, sidewalks and open spaces. A new energy code for residential buildings in Israel defines a required level of solar insolation of the buildings according to different city areas, orientations and climatic zones. These requirements were used to define objective criteria for solar rights regulations. Following, we define a method and a simple design tool that allows achieving the required solar insolation. Three methods were suggested; two are based on performance approach while

284

Requisites to realize high conversion efficiency of solar cells utilizing carrier multiplication  

Science Journals Connector (OSTI)

We have calculated the limiting conversion efficiency of solar cells utilizing carrier multiplication (CM), using the detailed balance theory. The solar cells were assumed to comprise quantum dots (QDs) embedded in another material. It has been elucidated that three requisites must be fulfilled, so that a sufficient number of photons in the solar spectrum contribute to CM, resulting in significantly higher conversion efficiency than the values of conventional cells. These requisites are as follows: (1) the effective mass of electrons in the \\{QDs\\} should be much lighter than that of holes, so that the threshold photon energy above which CM can occur is close to the energy gap of the QDs. In this respect, InAs is a promising candidate for the QD material, but PbSe and Si are not. (2) The potential barrier height for electrons in the QDs, which determines the upper limit of the quantum yield of photon-to-carrier conversion (?limit), should be slightly larger than the energy gap of the \\{QDs\\} to achieve a ?limit value of 2, when the solar cells are used under the non-concentrated insolation. InAs \\{QDs\\} embedded in AlxGa1?xAsySb1?y is a possible candidate to fulfill these two criteria. A higher barrier does not contribute to generation of more carriers, but likely disturbs electron transport. In contrast, under the concentrated insolation, a potential barrier slightly higher than twice the energy gap to achieve a ?limit value of 3 leads to higher conversion efficiency. (3) The quantum yield of photon-to-carrier conversion as a function of photon energy should rise as steeply as possible at the threshold photon energy. The experimentally observed quantum yield with a sloping rise leads to little improvement in conversion efficiency due to CM, under the non-concentrated insolation. Although it could be improved under the concentrated insolation, the conversion efficiency cannot reach the limiting value for triple-junction solar cells.

Yasuhiko Takeda; Tomoyoshi Motohiro

2010-01-01T23:59:59.000Z

285

Comparison of two techniques for the simulation of PV systems  

SciTech Connect

For several years, MIT Lincoln Laboratory has conducted computer simulations of the performance of photovoltaic solar energy systems in order to size system components, to define designs of potential economic feasibility, to test various control schemes, and to monitor the performance of working systems in the field. When used as an aid-to-design, these hourly simulations step through a full year's worth of insolation and weather data at a specific geographical site. These data are available on computer tapes in the SOLMET format from the National Climatic Center. More recently, a simulation technique has been developed that does not require marching through time but instead works with probability-density functions of daily values of insolation and load as inputs while still providing estimates of the usual measures of system performance (e.g., auxiliary energy required, surplus energy thrown away, fraction of load displaced). Results obtained compare well with results previously obtained from an hourly simulation of a daytime radio station. This technique may be used to study the effect on system performance of varying degrees of correlation of load with insolation and to test the sensitivity of economic analyses to variations in utility escalation rate (discounted for inflation), PV module and balance-of-system costs.

Bucciarelli, L.L.; Grossman, B.L.

1980-01-01T23:59:59.000Z

286

Exploration of volcanic geothermal energy resources based on rheological techniques. Final report  

SciTech Connect

Tidal strain and tilt field observations were carried out during the period February 1978 to December 1979 at the Klamath Graben and Newberry Caldera in Oregon and at Krafla in Northern Iceland. Moreover, tilt observations were made at Mt. St. Helens, Washington, during the summer of 1980. Two strainmeters of the same type as now in use by the US Geological Survey were applied in the strain work. Tilts were measured by two Kinemetrics model TM-1B biaxial tilt meters. The instruments were placed at depths of approximately one to two meters below the ground surface. Both strain and tilt fields turn out to be heavily contaminated by noise that is mostly of thermoelastic origin. In spite of considerable efforts, it has not been possible to process the strain field data to obtain sufficiently clear tidal signals. The tilt data are less contaminated and rather clear tidal signals were observed at Newberry in Oregon and Krafla in Iceland. A local magnification by a factor of about 3 of the EW component of the theoretical solid earth and ocean load tilt was observed at one station at Krafla. Moreover, the tidal tilt component across the ring fault at Newberry appears to be magnified by a factor of 1.4 to 1.9. The phenomena at the Krafla may possibly be due to a local magma chamber. These results are a clear indication of a tilt field modification by local structure and indicate the possibility of using tilt data to locate subsurface magma bodies.

Bodvarsson, G.; Axelsson, G.; Johnson, A.

1980-01-01T23:59:59.000Z

287

Multiscale modeling approach for calculating grain-boundary energies from first principles  

Science Journals Connector (OSTI)

A multiscale modeling approach is proposed for calculating energies of tilt-grain boundaries in covalent materials from first principles over an entire misorientation range for given tilt axes. The method uses energies from density-functional calculations for a few key structures as input into a disclination structural-units model. This approach is demonstrated by calculating energies of ?001?-symmetrical tilt-grain boundaries in diamond.

O. A. Shenderova; D. W. Brenner; A. A. Nazarov; A. E. Romanov; L. H. Yang

1998-02-01T23:59:59.000Z

288

Fast photovoltaic effects tuned by vicinal interface microstructure in manganite-based all-perovskite-oxide heterojunctions  

Science Journals Connector (OSTI)

Interfacial microstructure tunable photovoltaic effects have been reported in heterojunctions of La1?xCaxMnO3 thin films and tilted or exact cut...

Lu, Zhi-qing; Ni, Hao; Zhao, Kun; Leng, Wen-xiu; Kong, Yu-Chau; Wong, Hong-Kuen

2011-01-01T23:59:59.000Z

289

Evolution of a Humid Tropical Landscape in Northcentral Costa Rica as Deduced from Geomorphic and Pedogenic Evidence  

E-Print Network (OSTI)

18. Soils on Alluvial Plains in the Atlantic Low land Province ...... 247 19. Soils on Tilted Fault-Block Ridge I in the Piedmont Province 248 20. Soils on Tilted Fault-Block Ridge II In the Piedmont Province 250 21. Soils on Tilted Fault... of laharic origin, alluvial plains, and paired terraces are present in the Atlantic Lowland Pro vince of southern San Carlos. The Piedmont Province con tains tilted fault-block ridges, alluvial/laharic fans, alluvial plains, cinder cones, and volcanic ash...

Wells, Anke Maria Neumann

1979-01-01T23:59:59.000Z

290

Experimental spheromak MHD stability studies  

Science Journals Connector (OSTI)

The n = 1 tilt and radial shift instability of spheromaks is shown to be stabilized by the use of conducting wall (rwrs?1.2) and stabilization coils.

G.C. Goldenbaum; H. Bruhns; C. Chin-Fatt; Y.P. Chong; A.W. DeSilva; H.R. Griem; G.W. Hart; R.A. Hess; J.H. Irby; R.S. Shaw; Z.Y. Zhu

1983-01-01T23:59:59.000Z

291

E-Print Network 3.0 - altered gravito-inertial force Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Page: << < 1 2 3 4 5 > >> 1 Head tilt during driving DANIEL C. ZIKOVITZ and LAURENCE R. HARRIS * Summary: ; Gravito-inertial forces; Frames of reference; Passenger behaviour....

292

GE Global Research in Shanghai, China | GE Global Research  

NLE Websites -- All DOE Office Websites (Extended Search)

spectrum calibration, digital tilt and integrated CT console design to provide the rural market with a cost-efficient, highly reliable, high-quality image system. It was...

293

E-Print Network 3.0 - ac power loss Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

strip.) Turn off the lights Adjust your shades... . Drop and tilt your blinds to manage heat loss. In labs: Switch off all ... Source: Hammock, Bruce D. - Department of...

294

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

statistical properties of several cumulus cloud scenes created by a large eddy simulation model. Progressively greater degrees of tilt and stretching were imposed on these...

295

GEOPHYSICS, VOL. 65, NO. 1 (JANUARY-FEBRUARY 2000); P. 232246, 11 FIGS., 2 TABLES. Inversion of azimuthally dependent NMO velocity in transversely  

E-Print Network (OSTI)

) is a common anisotropic model of the subsurface typical for massive shale formations or thin-bed sedimentary with a tilted symmetry axis (TTI) describes dipping TI lay- ers (such as tilted shale beds near salt domes examine the propagation of errors in observed moveout velocities into estimated values of the anisotropic

Tsvankin, Ilya

296

Self adjusting inclinometer  

DOE Patents (OSTI)

An inclinometer utilizing synchronous demodulation for high resolution and electronic offset adjustment provides a wide dynamic range without any moving components. A device encompassing a tiltmeter and accompanying electronic circuitry provides quasi-leveled tilt sensors that detect highly resolved tilt change without signal saturation.

Hunter, Steven L. (Livermore, CA)

2002-01-01T23:59:59.000Z

297

Evaluation of image-shift measurement algorithms for solar Shack-Hartmann wavefront sensors  

E-Print Network (OSTI)

Context. Solar Shack-Hartmann wavefront sensors measure differential wavefront tilts as the relative shift between images from different subapertures. There are several methods in use for measuring these shifts. Aims. We evaluate the inherent accuracy of the methods and the effects of various sources of error, such as noise, bias mismatch, and blurring. We investigate whether Z-tilts or G-tilts are measured. Methods. We test the algorithms on two kinds of artificial data sets, one corresponding to images with known shifts and one corresponding to seeing with different r_0. Results. Our results show that the best methods for shift measurements are based on the square difference function and the absolute difference function squared, with subpixel accuracy accomplished by use of two-dimensional quadratic interpolation. These methods measure Z-tilts rather than G-tilts.

Löfdahl, Mats G

2010-01-01T23:59:59.000Z

298

Los Alamos National Laboratory passive solar program  

SciTech Connect

Progress in passive solar tasks performed at the Los Alamos National Laboratory for FY-81 is documented. A third volume of the Passive Solar Design Handbook is nearly complete. Twenty-eight configurations of sunspaces were studied using the solar load ratio method of predicting performance; the configuration showing best performance is discussed. The minimum level of insolation needed to generate convective flow in the thermosiphon test rig is noted and measured. Information is also included on test room performance, off-peak auxiliary electric heating for a passive home, free convection experiment, monitored buildings, and technical support to the US Department of Energy.

Neeper, D.A.

1981-01-01T23:59:59.000Z

299

International Data Base for the U.S. Renewable Energy Industry  

SciTech Connect

The International Data Base for the US Renewable Energy Industry was developed to provide the US renewable energy industry with background data for identifying and analyzing promising foreign market opportunities for their products and services. Specifically, the data base provides the following information for 161 developed and developing countries: (1) General Country Data--consisting of general energy indicators; (2) Energy Demand Data--covering commercial primary energy consumption; (3) Energy Resource Data--identifying annual average insolation, wind power, and river flow data; (4) Power System Data--indicating a wide range of electrical parameters; and (5) Business Data--including currency and credit worthiness data.

none

1986-05-01T23:59:59.000Z

300

Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices  

E-Print Network (OSTI)

C, respectively. The C.O.P in both cases was about 0.08. Wang et al. [13] studied a different approach to increase the overall efficiency of the adsorption icemaker, who joined a solar water heater and an icemaker in the same machine. This machine used... the pair Activated carbon-methanol and had 2 m2 of evacuated tube collectors to warm 60 kg of water up to 900C. The daily ice production was about 10 kg when the insolation was about 22 MJm-2. A similar system was studied by Wang et al. [14] who assumed...

Elsamni, O. A.; Sahmarani, K.J.; Obied, F. K.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Solar Energy Education. Renewable energy: a background text. [Includes glossary  

SciTech Connect

Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

Not Available

1985-01-01T23:59:59.000Z

302

SOLERAS - Solar Energy Water Desalination Project: Exxon Research and Engineering. System design final report, Volume 1. Design description seawater feed (System A)  

SciTech Connect

The design of a solar powered water desalination system is presented. Design data including insolation and climate of the Yanbu, Saudi Arabia site are included. Two solar desalination designs were developed including: (1) a conceptual baseline plant powered by a solar central receiver-heliostat field, and (2) a pilot plant that demonstrates and evaluates the design features of the baseline plant. The desalination process involves a hybrid reverse osmosis/multiple effect distillation process. The performance and economics of the design plants are analyzed. (BCS)

Not Available

1985-01-01T23:59:59.000Z

303

The effect of component efficiency and operating conditions on the 50-kW dish Stirling system in Riyadh, Saudia Arabia  

SciTech Connect

This paper deals with the development of a weather data base and the performance prediction of a 50-kW dish Stirling system. An analysis of direct solar insolation data for 1985 from the site in Riyadh, Saudi Arabia was made to determine the available solar energy. A parameter study was done of the effects of component efficiencies and operating conditions on instantaneous and yearly average system efficiency using the prepared weather data. The system performance was found to be most affected by wind, mirror reflectivity, and exact placement of the receiver in the focal point of the mirror.

Noyes, G.W. (Deutsche Forshungsanstait fur Luft-und Raumfahrt, Inst. fur Technische Thermodynamik, Pfaffenwaldrign 38-40, 7000 Stuttgart 80 (DE))

1990-11-01T23:59:59.000Z

304

PERFORMANCE EVALUATION OF PHOTOVOLTAIC CELL WITH AND WITHOUT THERMAL SINK  

E-Print Network (OSTI)

The following paper presents concisely the operation principles of photovoltaic cells and their main parameters. The efficiency of photovoltaic (PV) cell drop as their operating temperature increases especially under high insolation levels. The aim of the paper is to improve the performance of PV cell by dissipating excess heat, there by maintaining effective temperature of the cell which will enhance performance of the system. The work also deals with the comparing of the performance of PV cell with and without heat sink. During the study an optimum performance temperature was determined and heat sink mechanisms are used to maintain the determined temperature in PV cell.

Rob Res; Pramod N; K S Shashishekar; Pramod N; K S Shashishekar

305

The BEAM Project: Building Efficient Architectural Models  

K-12 Energy Lesson Plans and Activities Web site (EERE)

This activity allows students the opportunity to explore materials used in architectural engineering and gain an understanding of their insolating properties. Students will research, design, build, test and improve a structure as to achieve the highest energy efficiency possible. Structures will be tested outside on a sunny day for eight hours with temperature changes being recorded each hour. Students will gain an understanding of how the combination of building location and orientation along with building design and materials can greatly affect the energy efficiency of a building.

306

An integrated study of the reservoir performance in the Area Central Norte (ACN) region of the Tordillo Field (Argentina)  

E-Print Network (OSTI)

(ALLOCHTHONOUS) PALEOSOILS AND RHIZOCRETIONS LITHOLOGY ORGANIC REMAINS POINT BARS, SMALL LENSES INSOLATED CHANNELS, FINING UPWARD 50-82 8 160-300 8 8-1 1 R MEDIUM LENSES AND SMALL SHEETS(BROAD CHANNELS TO TABULAR 65-98 ft 300-980 11 13-20 ft MEDIUM LENSES... 22 25 . 26 3. 1 Correlation of core permeability, porosity, and saturation data with SP well log response, Well S-2001 Zone A-I (8, 242-8, 245 fl). . . . . . . . . . 30 3. 2 Correlation of core permeability and porosity data, Well S-2001 Zone A...

Tuvio, Raul

2012-06-07T23:59:59.000Z

307

Tracking benefits for solar collectors installed in Bangalore  

Science Journals Connector (OSTI)

The amount of energy that can be extracted from the solar radiation by solar collectors or photovoltaic systems depends mainly on the installation angle of the collector (tilt angle) and the tracking method used to follow the Sun. In this paper the optimum tilt angle for Bangalore ( 12 ° 5 8 ? ) has been calculated under various tracking conditions. For a fixed tilt angle collector facing south the optimum tilt angle is estimated to be between 15° and 17° and is not very sensitive to radiation data type. Fixed tilt angle collectors and collectors tilted on a monthly basis produced only marginal benefit ( horizontal orientation. However for continuously tracked systems benefits are as high as 35%. At least three sets of solar radiation data are available for Bangalore from different sources. It has been shown that they have considerable differences in their direct and diffuse content. All these data have been used to quantify tracking benefits to understand their sensitivity. Limited amount of available in-house data indicates higher diffuse fraction in solar radiation than predicted by historic data and satellite models. Hence the benefits due to tilting are reduced.

Pascal Fahl; Ganapathisubbu S

2011-01-01T23:59:59.000Z

308

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

China from NREL China from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate influences. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

309

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

49031 49031 Varnish cache server Solar: monthly and annual average direct normal (DNI) GIS data at 40km resolution for China from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to

310

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Mexico, Central America, and the Caribbean Islands from NREL Mexico, Central America, and the Caribbean Islands from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the model. The local cloud cover can vary significantly even within a single grid cell as a result of terrain effects and other microclimate

311

Solar: annual average global horizontal (GHI) GIS data at 10km resolution  

Open Energy Info (EERE)

global horizontal (GHI) GIS data at 10km resolution global horizontal (GHI) GIS data at 10km resolution for Cuba from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate solar collectors for Cuba (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a horizontal flat-plate solar collector, such as a Photovoltaic (PV) solar panel. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model. This model uses information on hourly satellite observed visible irradiance, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total of the normal or beam insolation falling on a tracking concentrator pointed

312

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Ethiopia from NREL Ethiopia from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Ethiopia. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. Existing ground measurement stations are used to validate the data where possible. The modeled values are accurate to approximately 10% of a true measured value within the grid cell due to the uncertainties associated with meteorological input to the

313

The use of predictive lithostratigraphy to significantly improve the ability to forecast reservoir and source rocks? Final CRADA report.  

SciTech Connect

The purpose of this CRADA, which ended in 2003, was to make reservoir and source rock distribution significantly more predictable by quantifying the fundamental controls on stratigraphic heterogeneity. To do this, the relationships among insolation, climate, sediment supply, glacioeustasy, and reservoir and source rock occurrence were investigated in detail. Work current at the inception of the CRADA had uncovered previously unrecognized associations among these processes and properties that produce a phenomenon that, when properly analyzed, will make lithostratigraphic variability (including texture, porosity, and permeability) substantially more understandable. Computer climate simulations of selected time periods, compared with the global distribution of paleoclimatic indicators, documented spatial and temporal climate changes as a function of insolation and provided quantitative changes in runoff, lake level, and glacioeustasy. The effect of elevation and climate on sediment yield was assessed numerically by analyzing digital terrain and climate data. The phase relationships of climate, yield, and glacioeustatic cycles from the Gulf of Mexico and/or other sedimentary basins were assessed by using lacunarity, a statistical technique.

Doctor, R. D.; Moore, T. L.; Energy Systems

2010-06-29T23:59:59.000Z

314

Estimating solar access of typical residential rooftops: A case study in San Jose, CA  

SciTech Connect

Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

2008-03-03T23:59:59.000Z

315

Using direct normal irradiance models and utility electrical loading to assess benefit of a concentrating solar power plant  

Science Journals Connector (OSTI)

The objective of this paper was to determine if three different direct normal irradiance (DNI) models were sufficiently accurate to determine if concentrating solar power (CSP) plants could meet the utility electrical load. DNI data were measured at three different laboratories in the United States and compared with DNI calculated by three DNI models. In addition, utility electrical loading data were obtained for all three locations. The DNI models evaluated were: the Direct Insolation Simulation Code (DISC), DIRINT, and DIRINDEX. On an annual solar insolation (e.g. kW h/m2) basis, the accuracy of the DNI models at all three locations was within: 7% (DISC), 5% (DIRINT), and 3% (DIRINDEX). During the three highest electrical loading months at the three locations, the monthly accuracy varied from: 0% to 16% (DISC), 0% to 9% (DIRINT), and 0% to 8% (DIRINDEX). At one location different pyranometers were used to measure GHI, and the most expensive pyranometers did not improve the DNI model monthly accuracy. In lieu of actually measuring DNI, using the DIRINT model was felt to be sufficient for assessing whether to build a CSP plant at one location, but use of either the DIRINT or DIRINDEX models was felt to be marginal for the other two locations due to errors in modeling DNI for utility peak electrical loading days – especially for partly cloudy days.

Brian D. Vick; Daryl R. Myers; William E. Boyson

2012-01-01T23:59:59.000Z

316

Effects of environmental factors on the conversion efficiency of solar thermoelectric co-generators comprising parabola trough collectors and thermoelectric modules without evacuated tubular collector  

Science Journals Connector (OSTI)

Abstract Solar thermoelectric co-generators (STECGs) are an attractive means of supplying electric power and heat simultaneously and economically. Here we examine the effects of environmental factors on the conversion efficiencies of a new type of STECG comprising parabolic trough concentrators and thermoelectric modules (TEMs). Each TEM array was bonded with a solar selective absorber plate and directly positioned on the focal axis of the parabolic concentrator. Glass tubular collectors were not used to encase the TEMs. Although this makes the overall system simpler, the environmental effects become significant. Simulations show that the performance of such a system strongly depends on ambient conditions such as solar insolation, atmospheric temperature and wind velocity. As each of these factors increases, the thermal losses of the STECG system also increase, resulting in reduced solar conversion efficiency, despite the increased radiation absorption. However, the impact of these factors is relatively complicated. Although the electrical efficiency of the system increases with increasing solar insolation, it decreases with increasing ambient temperature and wind velocity. These results serve as a useful guide to the selection and installation of STECGs, particularly in Guangzhou or similar climate region.

Chao Li; Ming Zhang; Lei Miao; Jianhua Zhou; Yi Pu Kang; C.A.J. Fisher; Kaoru Ohno; Yang Shen; Hong Lin

2014-01-01T23:59:59.000Z

317

Surface Radiation from GOES: A Physical Approach; Preprint  

SciTech Connect

Models to compute Global Horizontal Irradiance (GHI) and Direct Normal Irradiance (DNI) have been in development over the last 3 decades. These models can be classified as empirical or physical, based on the approach. Empirical models relate ground based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the radiation received from the earth at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a 4 km GHI and DNI product every 30 minutes. This paper presents an outline of the methodology and a comprehensive validation using high quality ground based solar data from the National Oceanic and Atmospheric Administration (NOAA) Surface Radiation (SURFRAD) (http://www.srrb.noaa.gov/surfrad/sitepage.html) and Integrated Surface Insolation Study (ISIS) http://www.srrb.noaa.gov/isis/isissites.html), the Solar Radiation Research Laboratory (SRRL) at National Renewable Energy Laboratory (NREL), and Sun Spot One (SS1) stations.

Habte, A.; Sengupta, M.; Wilcox, S.

2012-09-01T23:59:59.000Z

318

Aircraft engines. III  

SciTech Connect

Prospective powerplant configuration advancements for tilt-rotor subsonic flight, supersonic commercial flight, and hypersonic flight are speculated upon, with a view to possibilities for the exploitation of novel materials and of such advanced fuels as liquid methane and hydrogen. Attention is given to the foldable tilt-rotor concept, which employs a hydraulic torque converter to engage the fan stage of the high-bypass turbofan engine used in forward flight after the tilt-rotor blades have been stowed, and several advanced cycles and turbomechanical configurations for cruise in the high supersonic regime and beyond, through the hypersonic regime, and into orbital velocity.

Mikkelson, D.C.; Reck, G.M.

1988-01-01T23:59:59.000Z

319

File:SWERA-254.pdf | Open Energy Information  

Open Energy Info (EERE)

Solar: monthly and annual latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Solar: monthly and annual latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 240 KB, MIME type: application/pdf) Title Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Nepal. Description Solar: monthly and annual latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Sources National Renewable Energy Laboratory Related Technologies Solar Creation Date 2005-04-12 Extent International Countries Nepal UN Region Southern Asia External links http://swera.unep.net/index.php?id=35&idx=254 File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

320

irradiance | OpenEI  

Open Energy Info (EERE)

irradiance irradiance Dataset Summary Description (Abstract): Latitude Tilt Irradiance NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Latitude Tilt Radiation (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords GIS global irradiance latitude mapping NASA renewable energy solar solar PV SWERA TILT UNEP Data text/csv icon Latitude Tilt Radiation (kWh/m^2/day) (csv, 11.8 MiB) application/zip icon Download Shapefile (zip, 5 MiB)

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

mapping | OpenEI  

Open Energy Info (EERE)

mapping mapping Dataset Summary Description (Abstract): Latitude Tilt Irradiance NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Latitude Tilt Radiation (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords GIS global irradiance latitude mapping NASA renewable energy solar solar PV SWERA TILT UNEP Data text/csv icon Latitude Tilt Radiation (kWh/m^2/day) (csv, 11.8 MiB) application/zip icon Download Shapefile (zip, 5 MiB)

322

Solitary lift : redesigning the base and tilter modules to meet customer needs  

E-Print Network (OSTI)

A theoretical investigation towards the redesign of the base and the tilting module of the Solitary Lift prototype improved the machine with a weight reduction of 5.731bs. Besides lighter weight, the other criteria used ...

Vasquez, Elliot B. (Elliot Benjamin), 1982-

2004-01-01T23:59:59.000Z

323

GEOPHYSICS, VOL. 64, NO. 1 (JANUARY-FEBRUARY 1999); P. 146161, 9 FIGS., 2 TABLES. Joint inversion of P-and PS-waves in orthorhombic media  

E-Print Network (OSTI)

- imuthally dependent NMO velocities of the pure shear modes and to find the anisotropic parameters associatedwithfracturesystemsortransverselyisotropiclayers (e.g., shales) with a tilted symmetry axis. Substantial azimuthal Manuscript received

Tsvankin, Ilya

324

Multiparameter TTI tomography of P-wave reflection and VSP data Xiaoxiang Wang1  

E-Print Network (OSTI)

for dipping shale layers. Then in 2D, the tilt is equal to the reflector dip, which can be estimated from does not adequately describe anisotropic velocity fields and makes it difficult to fit the normal

Tsvankin, Ilya

325

Evaluation of Tropical Cyclone Center Identification Methods in Numerical Models  

Science Journals Connector (OSTI)

Identifying the center of a tropical cyclone in a high-resolution model simulation has a number of operational and research applications, including constructing a track, calculating azimuthal means and perturbations, and diagnosing vortex tilt. ...

Leon T. Nguyen; John Molinari; Diana Thomas

2014-11-01T23:59:59.000Z

326

Tunable, oblique incidence resonant grating filter for telecommunications  

Science Journals Connector (OSTI)

We have designed a tunable, oblique-incidence resonant grating filter that covers the C band as an add-drop device for incident TE-polarized light. We tune the filter by tilting a...

Niederer, Guido; Herzig, Hans Peter; Shamir, Joseph; Thiele, Hans; Schnieper, Marc; Zschokke, Christian

2004-01-01T23:59:59.000Z

327

E A S T ERN South Dakota  

E-Print Network (OSTI)

Charles R. EUlolI [\\,I(ion,11 \\\\etlands ImenIO!)' I ,s, II"h .tIlt! \\\\'ikllifc..' SL!I"\\'in: Denn'r FL

328

Goulden Equipment and Facilities Lab: 1400 ft2  

E-Print Network (OSTI)

(Sorval RC 5C, etc). Instruments for in-situ remote sensing: (2) FLIR thermal cameras, (2) JAI VIS fluorescence, (1) Ocular Robotics scanning LIDAR, misc pan-tilt mounts (FLIR D100 and D48), computers, software

Kimball, Sarah

329

E-Print Network 3.0 - active vertical fin Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Summary: active to tilt the caudal fin at an angle to the vertical 26. In some fish, especially those known... . Low-aspect ratio pectoral fins in sharks function to alter...

330

Rapid Roughening in Thin Film Growth of an Organic Semiconductor (Diindenoperylene) A. C. Durr,1,* F. Schreiber,1,2,  

E-Print Network (OSTI)

Rapid Roughening in Thin Film Growth of an Organic Semiconductor (Diindenoperylene) A. C. Du¨rr,1 roughening mechanism related to grain boundaries between tilt domains, which are a common feature of many

Schreiber, Frank

331

Graduate Studies Environmental Fluid Mechanics  

E-Print Network (OSTI)

and bridge scour · Wastewater dispersion in coastal waters · Cohesive sediment resuspension · Flood flume, a 24-m long tilting flume, a recirculating flume for cohesive sediment resuspension, a recircu

Jacobs, Laurence J.

332

A hybrid type small 5-axis CNC milling machine  

E-Print Network (OSTI)

5-axis CNC milling machines are important in a number of industries ranging from aerospace to consumer-die-mold machining because they can deliver high machining accuracy with a spindle tilting capacity. Most of these ...

Son, Seung-Kil, 1964-

2002-01-01T23:59:59.000Z

333

Prepared for the U.S. Department of Energy under Contract DE-AC02-76CH03073. Princeton Plasma Physics Laboratory  

E-Print Network (OSTI)

by counter-helicity spheromak merging. Kinetic simulations show nonlinear saturation of the n = 1 tilt mode of particle confinement. Three-dimensional MHD simulations of counter-helicity spheromak merging and FRC

334

Novel Dipole Trapped Spheromak Configuration  

Science Journals Connector (OSTI)

We report the observation and characterization of a spheromak formed in the Swarthmore Spheromak Experiment (SSX) and trapped in a simple dipole magnetic field. The spheromak is studied in the prolate (tilt unsta...

M. R. Brown; C. D. Cothran; J. Fung; M. J. Schaffer; E. Belova

2007-06-01T23:59:59.000Z

335

Spheromak instability  

Science Journals Connector (OSTI)

The ‘‘classical spheromak’’ (current density proportional to the magnetic field spherical plasma–vacuum interface homogeneous magnetic field at infinity) is unstable to global magnetohydrodynamic tilting modes even if an arbitrary perfectly conducting rigid wall bounds the vacuum.

D. Lortz; G. O. Spies

1994-01-01T23:59:59.000Z

336

Rectified Mosaicing: Mosaics without the Curl* Shmuel PelegAssaf Zomet ChetanArora  

E-Print Network (OSTI)

-10 Ohte-machi,Aizuwakamatsu-shi Fukushima,Japan 965-0873 Abstract Whenimages captured by a tilted camera solutions for the cases of zoom and forward motion were proposed in [8, 7, 11]. In this approach strips can

Peleg, Shmuel

337

Application of the calculus of variations in determining optimum flight profiles for commercial short haul aircraft  

E-Print Network (OSTI)

The method of steepest descent of the calculus of variations is used to determine the optimal flight profile of a hypothetical tilt wing aircraft travelling a distance of 50 miles. Direct operating cost, (as derived from ...

Gallant, Robert Alfred

1966-01-01T23:59:59.000Z

338

E-Print Network 3.0 - atlas solenoid magnetic Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Page: << < 1 2 3 4 5 > >> 1 MERIT Installation Status K. McDonald Summary: , transfer lines, racks, beam magnets. Solenoid mated with Hg system, both tilted by 67 mrad &...

339

Mapping of a segment of the Romanche Fracture Zone: A morphostructural analysis of a major transform fault of the equatorial Atlantic Ocean  

Science Journals Connector (OSTI)

...metadolerites, metabasalts, semi-indurated sed- Figure 1...than 110-km-long abrasion platform. The emergence lasted long...climate oueds and winds. The platform subsequently tilted toward...intersection sur- veyed by deep submersible Nautile: Terra Nova, v...

340

High-resolution ab initio three-dimensional X-ray diffraction microscopy (CXIDB ID 15)  

DOE Data Explorer (OSTI)

The file contains 125 images corresponding to different tilts of the sample around the y axis at 1 degree intervals. Each image is the result of 4 exposures merged together. For more details see the citation.

Chapman, Henry N.

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Shared Solar Projects Powering Households Throughout America...  

Office of Environmental Management (EM)

with enough rooftop space, the proper roof tilt, and just the right orientation to the Sun had the option to power their homes with solar. The average cost of solar panels has...

342

SpiritMars Exploration Rovers National Aeronautics and  

E-Print Network (OSTI)

hemisphere landing site. The rover's position tilted its solar panels toward the Sun to maintain enough solar power for Spirit to continue making scientific observations throughout the winter. The Pancam began

Waliser, Duane E.

343

Paying Too Much for Energy? The True Costs of Our Energy Choices  

E-Print Network (OSTI)

Energy consumption is critical to economic growth and quality of life. America's energy system, however, is malfunctioning. The status quo is characterized by a tilted playing field, where energy choices are based on the ...

Looney, Adam

344

The politics of representation and the social order : in the War on Terror  

E-Print Network (OSTI)

The U.S. Tilts toward Iraq, 1980-1984. ” National Security2008. “Why We Must Attack Iraq: Bush’s Reasoning PracticesM. 2007. Suicide Bombers in Iraq: The Strategy and Ideology

Chang, Gordon C.

2008-01-01T23:59:59.000Z

345

Visualizing biointerfaces in three dimensions: electron tomography of the bone–hydroxyapatite interface  

Science Journals Connector (OSTI)

...to three-dimensional analysis is becoming standard practice...routine three-dimensional analysis...biomaterial-bone interfaces by other...bone-scaffold interface and using...a three-dimensional reconstruction...tilt series measuring 320 260 70...

2010-01-01T23:59:59.000Z

346

E-Print Network 3.0 - adapted handheld gps Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

31 A GPS Tracking Application with a Tilt-and Motion-Sensing Interface Summary: the interface, standard features known from commercial handheld GPS devices (e.g. the Garmin...

347

Phase errors in diffraction-limited imaging: contrast limits for sparse aperture masking  

Science Journals Connector (OSTI)

......Fizeau 1868; Michelson 1891; Schwarzschild 1896), it was the use of closure...errors dominate due to tip/tilt mirror bandwidth) but as this depends...Nityananda R. ARA (1986) 24:127. Schwarzschild K. Astron. Nachr. (1896) 139......

M. J. Ireland

2013-01-01T23:59:59.000Z

348

A common framework for the observation software of astronomical instruments at ESO  

E-Print Network (OSTI)

Hemisphere,Karl- Schwarzschild-Strasse 2, D-85748 Garching bei München,Germany; b LAOG, BP 53, 38041 Grenoble devices such as carriage, filter, grating, tip/tilt; mirror; sensor; calibration lamp; etc). A particular

Liske, Jochen

349

BAROCLINIC VORTICITY PRODUCTION IN PROTOPLANETARY DISKS. II. VORTEX GROWTH AND LONGEVITY  

E-Print Network (OSTI)

the surface. Thus, the potential energy of the tilted isopycnals is converted into the kinetic energy and ocean convert the potential energ cooling, high thermal dif- fusion, and large radial temperature gradients in the background temperature

Julien, Keith

350

Effect of electron beam misalignments on the gyrotron efficiency  

SciTech Connect

The theory describing the operation of gyrotrons with tilted and shifted electron beams has been developed. Effects of the tilt and shift are studied for a 1 MW, 170 GHz gyrotron, which is presently under development in Europe for electron cyclotron resonance plasma heating and current drive in the International Thermonuclear Experimental Reactor. It is shown that one should expect significant deterioration of gyrotron operation in such gyrotrons when the tilt angle exceeds 0.4°–0.5° and the parallel shift of the beam axis with respect to the axis of a microwave circuit is larger than 0.4–0.5 mm. At the same time, simultaneous tilting and shifting in a proper manner can mitigate this deteriorating effect.

Dumbrajs, O. [Institute of Solid State Physics, University of Latvia, Kengaraga Street 8, LV-1063 Riga (Latvia)] [Institute of Solid State Physics, University of Latvia, Kengaraga Street 8, LV-1063 Riga (Latvia); Nusinovich, G. S. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742-3511 (United States)] [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742-3511 (United States)

2013-07-15T23:59:59.000Z

351

Crisplant defects quantification and reduction at an amazon.com distribution center  

E-Print Network (OSTI)

Crisplant is a tilt-tray sortation system used in Reno (RNO 1) fulfillment center (FC) to group items by customer orders. On average., crisplant processes about 80% of the total outbound volume through its multipart operation ...

Patel, Kashyap (Kashyap C.)

2010-01-01T23:59:59.000Z

352

Center for Materials at Irradiation and Mechanical Extremes:...  

NLE Websites -- All DOE Office Websites (Extended Search)

This movie shows our molecular dynamics simulation of a collision cascade near an asymmetric 11 tilt grain boundary in copper over a time of 380 ps. The grain boundary is at the...

353

EDITORIAL Open Access Web GIS in practice X: a Microsoft Kinect natural  

E-Print Network (OSTI)

-dimensional) virtual globes such as Google Earth (including its Street View mode), Bing Maps 3D, and NASA World Wind used for inclination and tilt sensing, and possibly image stabilisation [7]). Running proprietary

Gutierrez-Osuna, Ricardo

354

This article was published in an Elsevier journal. The attached copy is furnished to the author for non-commercial research and  

E-Print Network (OSTI)

axis, and, together with the Sun's rotation and radially expand- ing solar wind, the sheet forms related to the inclination of the Sun's magnetic dipole axis. The HCS tilt angle is also a key parameter

Usoskin, Ilya G.

355

Environmental Vertical Wind Shear with Hurricane Bertha (1996)  

Science Journals Connector (OSTI)

Hurricane Bertha (1996) was influenced by vertical wind shear with highly variable direction and magnitude. The paper describes a unique method for determining the vertical tilt of a tropical cyclone vortex using satellite and aircraft data. ...

Raymond M. Zehr

2003-04-01T23:59:59.000Z

356

NREL: News Feature - Model Car Races Put Creativity on the Line  

NLE Websites -- All DOE Office Websites (Extended Search)

tilt to the solar panels," The Manning School's Diana Santos said. "We learned about the solar panel and how it has silicon that helps collect the sun rays, and when the sun...

357

Effects of solar photovoltaic panels on roof heat transfer  

E-Print Network (OSTI)

the underside of the tilted solar panels and the surface of the roof under the solar panel (Fig.  2).  An air temperature of the  solar panel is similar to the roof 

Dominguez, Anthony; Kleissl, Jan; Luvall, Jeffrey C

2011-01-01T23:59:59.000Z

358

CryoTEM (Tecnai) | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

image tilt series to be obtained for three-dimensional reconstruction using electron tomography, and (2) a cryostage for observing samples in a frozen-hydrated state. The T-12...

359

Scaling up the energy of THz pulses created by optical rectification  

Science Journals Connector (OSTI)

The possibility for up-scaling the energy of sub-ps THz pulses generated by tilted pulse front excitation is demonstrated. Using 150-fs-long 500 ?J optical pump pulses at 800 nm up...

Stepanov, A; Kuhl, J; Kozma, I; Riedle, E; Almási, G; Hebling, J

2005-01-01T23:59:59.000Z

360

Mercury's moment of inertia from spin and gravity data Jean-Luc Margot,1,2  

E-Print Network (OSTI)

Mercury's moment of inertia from spin and gravity data Jean-Luc Margot,1,2 Stanton J. Peale,3 Sean of Mercury at 35 epochs between 2002 and 2012 reveal that its spin axis is tilted by (2.04 Ã? 0.08) arc min with respect to the orbit normal. The direction of the tilt suggests that Mercury is in or near a Cassini state

Hauck II, Steven A.

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Reliability analysis of electric power systems including time dependent sources  

E-Print Network (OSTI)

of the day. For various PV plant types there are numerous alternative tracking schemes to choose from [5]. Those tracking modes are: ~ No tracking(fixed tilt) ~ East-west horizontal axis tracking ~ North-south horizontal axis ~ Tilted vertical axis..., and vertical variations of temperature. Theses phenomena are of concern to the WTG planners, because excessive shear and turbulence forces can have destructive effects and vary the output. Windmills produce mechanical energy which in turn is changed...

Kim, Younjong

1987-01-01T23:59:59.000Z

362

Successive Phase Transitions in Antiferroelectric Liquid Crystal Systems  

E-Print Network (OSTI)

An axial next-nearest-neighbor XY model is studied as a model of chiral liquid crystals which exhibit many ferro-, ferri- and antiferroelectric tilted smectic phases. Depending on the values of interaction parameters, this model exhibits Ising symmetric (i.e., the tilt directions of directors are parallel or anti parallel) phases or XY symmetric phases. Phases with each type-of-symmetry show the character of devil's staircase, which has been observed in experiments.

Masaya Koroishi; Masashi Torikai; Mamoru Yamashita

2005-10-03T23:59:59.000Z

363

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

Ethiopia from NREL Ethiopia from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Ethiopia. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

364

Carribean Islands | OpenEI  

Open Energy Info (EERE)

Carribean Islands Carribean Islands Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors, for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. Source NREL Date Released January 31st, 2004 (10 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords Carribean Islands Central America GEF GHI GIS Mexico NREL solar SWERA UNEP Data text/csv icon Download Data (csv, 370.6 KiB) application/zip icon Download Shapefile (zip, 244 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

365

New and Underutilized Technology: Solar Water Heating | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Water Heating Solar Water Heating New and Underutilized Technology: Solar Water Heating October 7, 2013 - 9:02am Addthis The following information outlines key deployment considerations for solar water heating within the Federal sector. Benefits Solar water heating uses solar thermal collectors to heat water. Application Solar water heating is applicable in most building categories. Climate and Regional Considerations Solar water heating is best in regions with high insolation. Key Factors for Deployment The Energy Independence and Security Act (EISA) of 2007 requires 30% of hot water demand in new Federal buildings and major renovations to be met with solar water heating equipment providing it is life-cycle cost effective. Federal agencies must consider collector placement location to optimize

366

Solar: monthly and annual average global horizontal irradiance GIS data at  

Open Energy Info (EERE)

irradiance GIS data at irradiance GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Global Horizontal IrradianceNASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Insolation Incident On A Horizontal Surface (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Note 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180, is bounded by 89 to 90 (north) and 179 to 180 (east). The mid-point of

367

NREL: Dynamic Maps, GIS Data, and Analysis Tools - Solar Maps Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Maps Development - How the Maps Were Made Solar Maps Development - How the Maps Were Made 10km The State University of New York/Albany satellite radiation model was developed by Richard Perez and collaborators at the National Renewable Energy Laboratory and other universities for the U.S. Department of Energy. Specific information about this model can be found in Perez, et al. (2002). This model uses hourly radiance images from geostationary weather satellites, daily snow cover data, and monthly averages of atmospheric water vapor, trace gases, and the amount of aerosols in the atmosphere to calculate the hourly total insolation (sun and sky) falling on a horizontal surface. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at

368

Carribean | OpenEI  

Open Energy Info (EERE)

Carribean Carribean Dataset Summary Description (Abstract): Monthly Average Diffuse Solar Resource for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar radiation for the data domain. The insolation values represent the average solar energy available at a shaded location. This can be of value for day-lighting or other building applications. The data can be combined with other data (global horizontal, direct normal) to estimate the global radiation on different surfaces. Source NREL Date Released January 31st, 2004 (10 years ago) Date Updated November 30th, 2007 (7 years ago) Keywords Carribean Central America diffuse radiation GEF GIS Mexico NREL solar SWERA Data application/zip icon Download Shapefile (zip, 245.7 KiB)

369

perez | OpenEI  

Open Energy Info (EERE)

perez perez Dataset Summary Description Abstract - Monthly and annual average solar resource potential for the state of Hawaii. Purpose - Provide information on the solar resource potential for the state of Hawaii. The insolation values represent the average solar energy available to a concentrating collector on a 2-axis tracker, such as a dish or a power tower. Source National Renewable Energy Laboratory (NREL) Date Released February 04th, 2007 (7 years ago) Date Updated Unknown Keywords GIS NREL perez shapefile solar United States Data application/zip icon Shapefile (zip, 9.1 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 01/01/1998 - 12/31/2005 License License Other or unspecified, see optional comment below

370

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

371

GEF | OpenEI  

Open Energy Info (EERE)

GEF GEF Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. Source NREL Date Released April 12th, 2005 (9 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords China GEF GHI GIS NREL solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 629.4 KiB) text/csv icon Download Data (csv, 779.1 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 01/01/1985 - 12/31/1991 License License Open Data Commons Public Domain Dedication and Licence (PDDL)

372

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

Ghana from NREL Ghana from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Ghana. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

373

Section 82  

NLE Websites -- All DOE Office Websites (Extended Search)

µm µm µm µm µm µm Session Papers 361 Figure 1. Beaufort Sea region over which BASE flight campaigns were conducted. Boxes denote regions where cloudy boundary layers were sampled and are annotated with their corresponding flight numbers. Radiative and Microphysical Properties of Autumnal Arctic Clouds J. O. Pinto and J. A. Curry Program in Atmospheric and Oceanic Sciences University of Colorado Boulder, Colorado Introduction Clouds strongly modulate the surface energy budget over the Arctic ice pack. In autumn, as the amount of insolation rapidly decreases, their main influence is felt through enhancing the emissivity of the cold dry atmosphere. During autumn, low clouds are present over the arctic ice pack nearly 60% of the time. In addition, ice clouds, which are not

374

global horizontal irradiance | OpenEI  

Open Energy Info (EERE)

horizontal irradiance horizontal irradiance Dataset Summary Description (Abstract): Global Horizontal IrradianceNASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Jan 2008)22-year Monthly & Annual Average (July 1983 - June 2005) Parameter: Insolation Incident On A Horizontal Surface (kWh/m^2/day) Internet: http://eosweb.larc.nasa.gov/sse/ Note 1: SSE Methodology & Accuracy sections online Note 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords GHI GIS global horizontal irradiance NASA solar

375

China | OpenEI  

Open Energy Info (EERE)

China China Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for China. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. Source NREL Date Released April 12th, 2005 (9 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords China GEF GHI GIS NREL solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 629.4 KiB) text/csv icon Download Data (csv, 779.1 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 01/01/1985 - 12/31/1991 License License Open Data Commons Public Domain Dedication and Licence (PDDL)

376

Section 9  

NLE Websites -- All DOE Office Websites (Extended Search)

&58)((0.25(1365)/(971)'&20 &58)((0.25(1365)/(971)'&20 Session Papers 37 (1) Application of CAGEX for the Evaluation of Shortwave Codes and for the Testing of CERES TRMM Algorithms T. P. Charlock NASA Langley Research Center Hampton, Virginia T. L. Alberta, F. G. Rose, and D. A. Rutan Analytical Services and Materials, Inc. Hampton, Virginia The Atmospheric Radiation Measurement Program Enhanced (TOA) insolation in W/m** corresponds to the available Shortwave Experiment (ARESE) currently addresses the sample for computing the TOA net bias as calculated (from problem of the absorption of shortwave (SW) by the the Fu-Liou code) and measured (from the Minnis et al. 1995, atmosphere on a local scale with aircraft and ground-based conversion of the narrowband Geostationary Operational

377

Searching for Global Dimming Evidence at SGP and Update of ARM Submissions to BSRN  

NLE Websites -- All DOE Office Websites (Extended Search)

Searching for Global Dimming Evidence at SGP and Searching for Global Dimming Evidence at SGP and Update of ARM Submissions to BSRN G. Hodges Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder, Colorado Introduction Global dimming, usually defined as a reduction of incoming solar radiation (insolation) at the surface of the earth, is a topic being discussed with increasing frequency. A recent news article on global dimming in the web-based newspaper the Guardian Unlimited seems to have brought this issue to the forefront with scientists and laypeople alike. In fact, there is a special session devoted to global dimming at the upcoming May 17-21 American Geophysical Union (AGU) meeting in Montreal, Canada. The article quotes Atsumu Ohmura and references his findings on this subject.

378

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Ghana from NREL Ghana from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors for Ghana. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

379

Solar: monthly direct normal (DNI) GIS data at 10km resolution for Central  

Open Energy Info (EERE)

for Central for Central America from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Central America. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model. This

380

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Brazil. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Solar: annual average direct normal (DNI) GIS data at 10km resolution for  

Open Energy Info (EERE)

GIS data at 10km resolution for GIS data at 10km resolution for Cuba from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Cuba (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model. This

382

Building Energy Software Tools Directory: DEROB-LTH  

NLE Websites -- All DOE Office Websites (Extended Search)

DEROB-LTH DEROB-LTH DEROB-LTH logo. Design tool used to explore the complex dynamic behaviour of buildings for different designs. The behaviour is expressed in terms of temperatures, heating- and cooling loads and different comfort indices. The form of the building can be modelled in a flexible way. The model for assessing the solar insolation on building surfaces is detailed and includes the influence of different types of shading devices. The window model has been improved and calculates properties for a window package in an accurate way. The simulation uses a time step of one hour and calculates values in response to hourly values for climatic data, internal loads and airflows. Keywords energy performance, heating, cooling, thermal comfort, design Validation/Testing

383

SunShot Initiative: Baseload CSP Generation Integrated with Sulfur-Based  

NLE Websites -- All DOE Office Websites (Extended Search)

CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage General Atomics logo Graphic of a diagram of squares and circles connected by arrows. Sulfur-based TES can compensate for diurnal and seasonal insolation fluctuations. General Atomics, under the Baseload CSP FOA, is demonstrating the engineering feasibility of using a sulfur-based thermochemical cycle to store heat from a CSP plant and support baseload power generation. Approach There are three main project objectives under this award: Study the sulfur generating disproportionation reaction and develop it into a practical engineering process step. Carry out preliminary process components design and experimental validation. The engineering data will be used for process integration between the CSP plant, the sulfur processing and storage plant, and the electricity generation unit.

384

Solar: monthly global horizontal (GHI) GIS data at 10km resolution for  

Open Energy Info (EERE)

Central America from SUNY Central America from SUNY Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate solar collectors for Central America (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a horizontal flat-plate solar collector, such as a Photovoltaic (PV) solar panel. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 10 km by 10 km in size. The solar resource value is represented as kilowatt-hours per square meter per day for each month. The data were developed from the State University of New York's (SUNY) GOES satellite solar model.

385

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Brazil. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

386

Solar: monthly and annual average direct normal (DNI) GIS data at 40km for  

Open Energy Info (EERE)

km for km for Sri Lanka from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Sri Lanka (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

387

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Kenya. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

388

Solar: monthly direct normal (DNI) GIS data at 40km resolution for  

Open Energy Info (EERE)

40km resolution for 40km resolution for Bangladesh from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Bangladesh. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

389

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Nepal. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

390

atmospheric water vapor | OpenEI  

Open Energy Info (EERE)

atmospheric water vapor atmospheric water vapor Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords atmospheric water vapor Carribean Islands Central America DNI GIS Mexico NREL GEF solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 247.8 KiB) text/csv icon Download Data (csv, 370.6 KiB) Quality Metrics Level of Review Some Review

391

Posters Triggering of Boundary Layer Cumulus Clouds Over a Heterogeneous Surface  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 Posters Triggering of Boundary Layer Cumulus Clouds Over a Heterogeneous Surface K. Schrieber, R. Stull, and Q. Zhang Boundary Layer Research Team Department of Atmospheric and Oceanic Science University of Wisconsin Madison, Wisconsin Complex multimodal joint frequency distributions of LCL height versus θ v in surface-layer air over a large heteroge- neous surface area are modeled as the superposition of simpler mono-modal distributions. These simpler distri- butions, which apply to quasi-homogeneous subdomains, are approximated with bivariate distribution models. The shape of each of these modeled distributions depends on variations of the Bowen ratio and heat input forcings. These forcings are a function of the landscape, insolation, surface albedo, cloud-shading, soil moisture, and other

392

Materials for Energy How pressing needs for innovative technologies demand new ways of creating materials and putting them together  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Littlewood Littlewood Associate Lab Director, Physical Sciences and Engineering Argonne National Laboratory Secretary of Energy Advisory Board 17 April 2012 Materials for Energy How pressing needs for innovative technologies demand new ways of creating materials and putting them together The scale of the challenge: Energy usage per m 2 Courtesy D J Mackay, UK DECC Renewable deployments are country-sized Courtesy D J Mackay, UK DECC Challenges of Geography, Efficiency, and Cost Power density Watt/m 2 Full insolation Arizona desert 300 Concentrated solar power (desert) 15-20 Solar photovoltaic 5-20 Biomass 1-2 Tidal pools/tidal stream 3-8 Wind 2-8 Rainwater (highland) 0.3 US energy consumption (all sources) 0.3 In the US: Solar + wind + storage + grid infrastructure= sustainable economy

393

Natural convection heating system: off-the-wall evaluation methods  

SciTech Connect

One day data collection results are described for supplementary monitoring of convective air collectors coupled with rock bin storage for house heating. This particular 100% passive heated solar house in the mountains of Arizona had been extensively monitored and previously reported. New information includes the performance of collectors and storage during changeable insolation. In addition, there are evaluations of the alternative techniques for monitoring leakage of dampers on delivery registers, an empirical technique for determining the thermal contribution of direct gain features, and subjective responses of owners to the quality of convective and radiative comfort. Warm is warm, said the owner-builders. Design recommendations for future systems are made and a testing method using a bag volumeter is described. Post-occupancy evaluation is strongly recommended.

Cook, J.; Morris, W.S.

1981-01-01T23:59:59.000Z

394

Wide band-gap, fairly conductive p-type hydrogenated amorphous silicon carbide films prepared by direct photolysis; solar cell application  

SciTech Connect

Wide optical band-gap (2.0--2.3 eV) undoped and boron-doped hydrogenated amorphous silicon carbide (a-SiC:H) films have been prepared by both direct photo and rf glow discharge (GD plasma) decomposition of pure methylsilanes or acetylene and disilane gas mixtures. The photochemically prepared p-type films showed higher dark conductivities and lower activation energies. For an optical band gap of 2.0 eV a high conductivity of 7.0 x 10/sup -5/ (S cm/sup -1/) and a low activation energy of 0.33 eV have been measured. The first trial of these wide band-gap, fairly conductive films as a window layer in a p-i-n solar cell showed the high conversion efficiency of 9.46% under AM1 insolation.

Yamada, A.; Kenne, J.; Konagai, M.; Takahashi, K.

1985-02-01T23:59:59.000Z

395

Chapter 2 - Photovoltaic  

Science Journals Connector (OSTI)

Abstract This chapter discusses solar radiation characteristics: solar constant, direct and diffuse sunlight, air mass, irradiance, insolation, peak sun hours, and the solar window. Moreover, it considers photovoltaic (PV) conversion, the photovoltaic cell, and the performance evaluation of PV cells, module, panels and arrays that include: current?voltage (I–V) characteristics, power–voltage (P–V) characteristics. The chapter also studies the effect of irradiance on a PV cell voltage and current, the equivalent circuit of a solar cell, and the connection of the PV devices (parallel and series). The chapter explores ways of optimization PV arrays: maximum power point trackers, sun trackers, batteries' use, and proper matching with loads and solar concentration. It talks about photovoltaic systems: stand-alone and interactive, PV sizing of a stand-alone PV systems, PV applications, and utility interconnection issues and requirements.

Ziyad Salameh

2014-01-01T23:59:59.000Z

396

Operational Strategies for Battery Storage Systems in Low-voltage Distribution Grids to Limit the Feed-in Power of Roof-mounted Solar Power Systems  

Science Journals Connector (OSTI)

Abstract Due to the high amount of installed solar power systems in Germany, the low-voltage distribution grids reach their maximum capacities in periods of high insolation. In order to ensure a proper integration of today's and especially the prospective solar energy, grid reinforcement is a common method to increase the transmission capacity. As an alternative to this costly and intricate approach, local battery storage systems can be used to store the surplus generation and limit the feed-in power of the solar power systems. In this paper, two different operational strategies for battery storage systems together with solar power systems for self-consumption are presented and evaluated. Results show that the feed-in power can be distinctly reduced without generating significant losses for the system-owner.

Alexander Zeh; Rolf Witzmann

2014-01-01T23:59:59.000Z

397

Trace gases, CO2, climate, and the greenhouse effect  

Science Journals Connector (OSTI)

Weather is driven by the sun’s energy input and the difference between insolation per unit area of the poles and the equator. The energy flux of the Earth is in long?term balance—as much is radiated away by the Earth as is absorbed or the mean temperature would have to increase or decrease steadily (and of course this is not observed). CO2 and other ‘‘trace gases’’ can cause the Earth’s mean temperature to rise through the Greenhouse Effect. The mean temperature in the Little Ice Age was only 1?°C cooler but large effects were felt especially toward the poles. The CO2 which stays in the atmosphere will raise Earth’s mean temperature with effects which are relatively certain: a lot of warming at the poles and a very small amount of warming at the equator.

Gordon J. Aubrecht II

1988-01-01T23:59:59.000Z

398

Experience with the SOL14 computer program  

SciTech Connect

The SOL14 computer program was developed to provide performance estimates on new solar heated building designs. The program is based on a one-month first law model that is amplified in the paper. Insolation on collectors at any orientation is computed according to modified ASHRAE equations. The effect of thermal capacitance is analyzed using the concept of overheat, excess solar gain that must be rejected rather than used. Internal temperature swings are analyzed with a time-lag model. The program was tested on nineteen buildings and a comparison of actual and estimated performance is presented. The nineteen buildings include direct gain, Solaris, Trombe, superinsulated and retrofit greenhouses. The program estimated auxiliary heat within about 12% of actual experience in all cases except extremely low energy users (less than 10 MMBtu); here the noise of an open window or a week's vacation became the major energy consideration.

Hyman, H.

1980-01-01T23:59:59.000Z

399

Distributed Energy Resources for Carbon Emissions Mitigation  

SciTech Connect

The era of publicly mandated GHG emissions restrictions inthe United States has begun with recent legislation in California andseven northeastern states. Commercial and industrial buildings canimprove the carbon-efficiency of end-use energy consumption by installingtechnologies such as on-site cogeneration of electricity and useful heatin combined heat and power systems, thermally-activated cooling, solarelectric and thermal equipment, and energy storage -- collectively termeddistributed energy resources (DER). This research examines a collectionof buildings in California, the Northeast, and the southern United Statesto demonstrate the effects of regional characteristics such as the carbonintensity of central electricity grid, the climate-driven demand forspace heating and cooling, and the availability of solar insolation. Theresults illustrate that the magnitude of a realistic carbon tax ($100/tC)is too small to incent significant carbon-reducing effects oneconomically optimal DER adoption. In large part, this is because costreduction and carbon reduction objectives are roughly aligned, even inthe absence of a carbon tax.

Firestone, Ryan; Marnay, Chris

2007-05-01T23:59:59.000Z

400

Test results, Industrial Solar Technology parabolic trough solar collector  

SciTech Connect

Sandia National Laboratories and Industrial Solar Technology are cost-sharing development of advanced parabolic trough technology. As part of this effort, several configurations of an IST solar collector were tested to determine the collector efficiency and thermal losses with black chrome and black nickel receiver selective coatings, combined with aluminized film and silver film reflectors, using standard Pyrex{reg_sign} and anti-reflective coated Pyrex{reg_sign} glass receiver envelopes. The development effort has been successful, producing an advanced collector with 77% optical efficiency, using silver-film reflectors, a black nickel receiver coating, and a solgel anti-reflective glass receiver envelope. For each receiver configuration, performance equations were empirically derived relating collector efficiency and thermal losses to the operating temperature. Finally, equations were derived showing collector performance as a function of input insolation value, incident angle, and operating temperature.

Dudley, V.E. [EG and G MSI, Albuquerque, NM (United States); Evans, L.R.; Matthews, C.W. [Sandia National Labs., Albuquerque, NM (United States)

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Assessment of solar energy as an alternative energy source for the Republic of Panama  

SciTech Connect

A number of different applications of solar energy were selected for an assessment of the potential solar use in the industrial, commercial and agricultural sectors of the Panamanian economy. Various solar technologies are taken into consideration with the solar water heating for industrial, commercial and institutional uses being designated as preferable for a large scale implementation. The anticipated energy saving by using solar energy to provide 50% of the energy contribution for water heating for selected applications is presented. Data showing the cost of materials required for such a solar energy contribution are given. Data for the monthly average of the daily total insolation and the reliability of these data are discussed. Finally, the expected impact of solar energy use in the Republic of Panama is discussed.

Pytlinski, J.T. ( Univ. of Puerto Rico, Mayaguez); Soderstrom, K.G.; Bryson, T.; Osorio, A.

1982-01-01T23:59:59.000Z

402

Status of the Boeing Dish Engine Critical Component project  

SciTech Connect

The Boeing Company's Dish Engine Critical Component (DECC) project started in April of 1998. It is a continuation of a solar energy program started by McDonnel Douglas (now Boeing) and United Stirling of Sweden in the mid 1980s. The overall objectives, schedule, and status of this project are presented in this paper. The hardware test configuration, hardware background, operation, and test plans are also discussed. A summary is given of the test data, which includes the daily power performance, generated energy, working-gas usage, mirror reflectivity, solar insolation, on-sun track time. Generating time, and system availability. The system performance based upon the present test data is compared to test data from the 1984/88 McDonnel Douglas/United Stirling AB/Southern California Edison test program. The test data shows that the present power, energy, and mirror performance is comparable to when the hardware was first manufactured 14 years ago.

Stone, K.W.; Nelving, H.; Braun, H.W.; Clark, T.B.; Diver, R.B.

1999-07-01T23:59:59.000Z

403

Earth system models: a test using the mid-Holocene in the Southern Hemisphere  

Science Journals Connector (OSTI)

Palaeoclimatic reconstructions from proxy data have been compared with climate model outcomes for three decades. It has become evident that explanations of past climates can rely on neither data source alone, the former often being descriptive tools and the latter dependent on model structures and parameterisations. The status of vegetation changes, either as a follower of climate changes or as a modulator of insolation–terrestrial system responses, is vital if proxy records are to be effectively interpreted in climate terms and if models are to be more robust in appropriately incorporating vegetation roles. We use an earth system model (CLIMBER) and proxy data from Southern Hemisphere locations to compare postdictions of mid-Holocene climates. It is concluded that climate simulations and predictions are likely to be inaccurate if vegetation is not properly incorporated, and appropriate models can allow hypotheses to be developed that better explain atmosphere–earth system linkages.

Robert J. Wasson; Martin Claussen

2002-01-01T23:59:59.000Z

404

Damping of glacial-interglacial cycles from anthropogenic forcing  

E-Print Network (OSTI)

Climate variability over the past million years shows a strong glacial-interglacial cycle of ~100,000 years as a combined result of Milankovitch orbital forcing and climatic resonance. It has been suggested that anthropogenic contributions to radiative forcing may extend the length of the present interglacial, but the effects of anthropogenic forcing on the periodicity of glacial-interglacial cycles has received little attention. Here I demonstrate that moderate anthropogenic forcing can act to damp this 100,000 year cycle and reduce climate variability from orbital forcing. Future changes in solar insolation alone will continue to drive a 100,000 year climate cycle over the next million years, but the presence of anthropogenic warming can force the climate into an ice-free state that only weakly responds to orbital forcing. Sufficiently strong anthropogenic forcing that eliminates the glacial-interglacial cycle may serve as an indication of an epoch transition from the Pleistocene to the Anthropocene.

Haqq-Misra, Jacob

2014-01-01T23:59:59.000Z

405

Definition: Irradiance | Open Energy Information  

Open Energy Info (EERE)

Irradiance Irradiance Jump to: navigation, search Dictionary.png Irradiance The direct, diffuse, and reflected solar radiation that strikes a surface. Usually expressed in kilowatts per square meter. Irradiance multiplied by time equals insolation.[1] View on Wikipedia Wikipedia Definition Irradiance is the power of electromagnetic radiation per unit area incident on a surface. Radiant emittance or radiant exitance is the power per unit area radiated by a surface. The SI units for all of these quantities are watts per square meter (W/m), while the cgs units are ergs per square centimeter per second (erg·cm·s, often used in astronomy). These quantities are sometimes called intensity, but this usage leads to confusion with radiant intensity, which has different units. All of these

406

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Kenya. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

407

Solar: monthly and annual average global horizontal (GHI) GIS data at 40km  

Open Energy Info (EERE)

Sri Lanka from NREL Sri Lanka from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for horizontal flat-plate collectors, for Sri Lanka (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

408

DOE Challenge Home Consolidated Renewable Energy Ready Checklist  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Consolidated Consolidated Renewable Energy Ready Checklist DOE Challenge Home National Program Requirements Mandatory Requirement 7 (Renewable Ready) shall be met by any home certified under the DOE Challenge Home program, only where all three conditions of the following conditions are met: 1. Location, based on zip code has at least 5 kWh/m 2 /day average daily solar radiation based on annual solar insolation using PVWatts online tool: http://gisatnrel.nrel.gov/PVWatts_Viewer/index.html AND; 2. Location does not have significant natural shading (e.g., trees, tall buildings on the south- facing roof, AND; 3. Home as designed has adequate free roof area within +/-45° of true south as noted in the table below. Note that in some cases a house may have insufficient roof area for the Solar

409

Section 50  

NLE Websites -- All DOE Office Websites (Extended Search)

Measurements of the Summertime Surface Radiation Measurements of the Summertime Surface Radiation Budget in the Arctic P. J. Minnett Meteorology and Physical Oceanography Division Rosenstiel School of Marine and Atmospheric Science University of Miami Miami, Florida Abstract Measurements of the long- and short-wave incident radiation taken from the USCGC Polar Sea during a research cruise to the Northeast Water Polynya during the summer of 1993 are analyzed, together with observations of cloud type and amount, to determine the effects of summertime Arctic clouds on the surface radiation budget. The solar zenith angle is found to be critical in determining whether clouds heat or cool the surface. For large solar zenith angles, the infrared heating effect of clouds is greater than the reduction in insolation caused by clouds, and the

410

Hybrid Power System Simulation Model | Open Energy Information  

Open Energy Info (EERE)

Hybrid Power System Simulation Model Hybrid Power System Simulation Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Hybrid Power System Simulation Model Focus Area: Renewable Energy Topics: System & Application Design Website: www.umass.edu/windenergy/OLD_SITE/projects/hybrid2/ Equivalent URI: cleanenergysolutions.org/content/hybrid-power-system-simulation-model, Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance This tool performs detailed long-term performance and economic analysis on a wide variety of hybrid power systems. It is a probabilistic/time-series computer model, using time-series data for loads, wind speed, solar insolation, temperature, and the power system designed or selected by the user, to predict the performance of the hybrid power system. An economic

411

NREL GEF | OpenEI  

Open Energy Info (EERE)

GEF GEF Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. Source NREL Date Released July 31st, 2006 (8 years ago) Date Updated October 30th, 2007 (7 years ago) Keywords atmospheric water vapor Carribean Islands Central America DNI GIS Mexico NREL GEF solar SWERA UNEP Data application/zip icon Download Shapefile (zip, 247.8 KiB) text/csv icon Download Data (csv, 370.6 KiB) Quality Metrics Level of Review Some Review

412

Solar: monthly global horizontal (GHI) GIS data at 40km resolution for  

Open Energy Info (EERE)

40km resolution for 40km resolution for Bangladesh from NREL Dataset Summary Description (Abstract): Monthly average solar resource for horizontal flat-plate collectors for Bangladesh. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented horizontally. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is represented as watt-hours per square meter per day for each month. The data were developed from NREL's Climatological Solar Radiation (CSR) Model. This model uses information on cloud cover, atmospheric water

413

Solar: monthly and annual average direct normal (DNI) GIS data at 40km  

Open Energy Info (EERE)

22 22 Varnish cache server Solar: monthly and annual average direct normal (DNI) GIS data at 40km resolution for Mexico, Central America, and the Caribbean Islands from NREL Dataset Summary Description (Abstract): Monthly Average Solar Resource for 2-axis tracking concentrating collectors for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar resource potential for the data domain. The insolation values represent the average solar energy available to a concentrating collector, such as a dish collector, which tracks the sun continuously. (Supplemental Information): These data provide monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. The solar resource value is

414

Mexico | OpenEI  

Open Energy Info (EERE)

Mexico Mexico Dataset Summary Description (Abstract): Monthly Average Diffuse Solar Resource for Mexico, Central America, and the Caribbean Islands. (Purpose): Provide information on the solar radiation for the data domain. The insolation values represent the average solar energy available at a shaded location. This can be of value for day-lighting or other building applications. The data can be combined with other data (global horizontal, direct normal) to estimate the global radiation on different surfaces. Source NREL Date Released January 31st, 2004 (10 years ago) Date Updated November 30th, 2007 (7 years ago) Keywords Carribean Central America diffuse radiation GEF GIS Mexico NREL solar SWERA Data application/zip icon Download Shapefile (zip, 245.7 KiB) text/csv icon Download Data (csv, 380.6 KiB)

415

A novel power block for CSP systems  

SciTech Connect

Concentrating Solar Thermal Power (CSP) and in particular parabolic trough, is a proven large-scale solar power technology. However, CSP cost is not yet competitive with conventional alternatives unless subsidized. Current CSP plants typically include a condensing steam cycle power block which was preferably designed for a continuous operation and higher operating conditions and therefore, limits the overall plant cost effectiveness and deployment. The drawbacks of this power block are as follows: (i) no power generation during low insolation periods (ii) expensive, large condenser (typically water cooled) due to the poor extracted steam properties (high specific volume, sub-atmospheric pressure) and (iii) high installation and operation costs. In the current study, a different power block scheme is proposed to eliminate these obstacles. This power block includes a top Rankine cycle with a back pressure steam turbine and a bottoming Kalina cycle comprising another back pressure turbine and using ammonia-water mixture as a working fluid. The bottoming (moderate temperature) cycle allows power production during low insolation periods. Because of the superior ammonia-water vapor properties, the condensing system requirements are much less demanding and the operation costs are lowered. Accordingly, air cooled condensers can be used with lower economical penalty. Another advantage is that back pressure steam turbines have a less complex design than condensing steam turbines which make their costs lower. All of these improvements could make the combined cycle unit more cost effective. This unit can be applicable in both parabolic trough and central receiver (solar tower) plants. The potential advantage of the new power block is illustrated by a detailed techno-economical analysis of two 50 MW parabolic trough power plants, comparing between the standard and the novel power block. The results indicate that the proposed plant suggests a 4-11% electricity cost saving. (author)

Mittelman, Gur [ASP Ltd., Advanced Solar Power, Industrial Zone, Be'er Tuviyya (Israel); Epstein, Michael [Solar Research Facilities Unit, Weizmann Institute of Science (Israel)

2010-10-15T23:59:59.000Z

416

A comparison of spent fuel shipping cask response to 10 CFR 71 normal conditions and realistic hot day extremes  

SciTech Connect

An examination of the effect of a realistic (though conservative) hot day environment on the thermal transient behavior of spent fuel shipping casks is made. These results are compared to those that develop under the prescribed normal thermal condition of 10 CFR 71. Of specific concern are the characteristics of propagating thermal waves, which are set up by diurnal variations of temperature and insolation in the outdoor environment. In order to arrive at a realistic approximation of these variations on a conservative hot day, actual temperature and insolation measurements have been obtained from the National Climatic Data Center (NCDC) for representatively hot and high heat flux days. Thus, the use of authentic meteorological data ensures the realistic approach sought. Further supporting the desired realism of the modeling effort is the use of realistic cask configurations in which multiple laminations of structural, shielding, and other materials are expected to attenuate the propagating thermal waves. The completed analysis revealed that the majority of wall temperatures, for a wide variety of spent fuel shipping cask configurations, fall well below those predicted by enforcement of the regulatory environmental conditions of 10 CFR 71. It was found that maximum temperatures at the cask surface occasionally lie above temperatures predicted under the prescribed regulatory conditions. However, the temperature differences are small enough that the normal conservative assumptions that are made in the course of typical cask evaluations should correct for any potential violations. The analysis demonstrates that diurnal temperature variations that penetrate the cask wall all have maxima substantially less than the corresponding regulatory solutions. Therefore it is certain that vital cask components and the spent fuel itself will not exceed the temperatures calculated by use of the conditions of 10 CFR 71.

Manson, S.J.; Gianoulakis, S.E. [Sandia National Labs., Albuquerque, NM (United States). Transportation Systems Development Dept.

1994-04-01T23:59:59.000Z

417

DOPPLER SIGNATURES OF THE ATMOSPHERIC CIRCULATION ON HOT JUPITERS  

SciTech Connect

The meteorology of hot Jupiters has been characterized primarily with thermal measurements, but recent observations suggest the possibility of directly detecting the winds by observing the Doppler shift of spectral lines seen during transit. Motivated by these observations, we show how Doppler measurements can place powerful constraints on the meteorology. We show that the atmospheric circulation-and Doppler signature-of hot Jupiters splits into two regimes. Under weak stellar insolation, the day-night thermal forcing generates fast zonal jet streams from the interaction of atmospheric waves with the mean flow. In this regime, air along the terminator (as seen during transit) flows toward Earth in some regions and away from Earth in others, leading to a Doppler signature exhibiting superposed blueshifted and redshifted components. Under intense stellar insolation, however, the strong thermal forcing damps these planetary-scale waves, inhibiting their ability to generate jets. Strong frictional drag likewise damps these waves and inhibits jet formation. As a result, this second regime exhibits a circulation dominated by high-altitude, day-to-night airflow, leading to a predominantly blueshifted Doppler signature during transit. We present state-of-the-art circulation models including non-gray radiative transfer to quantify this regime shift and the resulting Doppler signatures; these models suggest that cool planets like GJ 436b lie in the first regime, HD 189733b is transitional, while planets hotter than HD 209458b lie in the second regime. Moreover, we show how the amplitude of the Doppler shifts constrains the strength of frictional drag in the upper atmospheres of hot Jupiters. If due to winds, the {approx}2 km s{sup -1} blueshift inferred on HD 209458b may require drag time constants as short as 10{sup 4}-10{sup 6} s, possibly the result of Lorentz-force braking on this planet's hot dayside.

Showman, Adam P.; Lewis, Nikole K. [Department of Planetary Sciences and Lunar and Planetary Laboratory, The University of Arizona, 1629 University Boulevard, Tucson, AZ 85721 (United States)] [Department of Planetary Sciences and Lunar and Planetary Laboratory, The University of Arizona, 1629 University Boulevard, Tucson, AZ 85721 (United States); Fortney, Jonathan J. [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)] [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Shabram, Megan, E-mail: showman@lpl.arizona.edu [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States)] [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States)

2013-01-01T23:59:59.000Z

418

File:SWERA-248.pdf | Open Energy Information  

Open Energy Info (EERE)

pdf pdf Jump to: navigation, search File File history File usage Solar: monthly latitude tilt GIS data at 40km resolution for Bangladesh from NREL Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 248 KB, MIME type: application/pdf) Title Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Bangladesh. Description Solar: monthly latitude tilt GIS data at 40km resolution for Bangladesh from NREL Sources National Renewable Energy Laboratory Related Technologies Solar Creation Date 2005-04-12 Extent International Countries Bangladesh UN Region Southern Asia External links http://swera.unep.net/index.php?id=35&idx=248 File history Click on a date/time to view the file as it appeared at that time.

419

ARM - Datastreams - rphtilt  

NLE Websites -- All DOE Office Websites (Extended Search)

Datastreamsrphtilt Datastreamsrphtilt Documentation Data Quality Plots ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : RPHTILT RPH stabilized platform tilt Active Dates 2012.09.29 - 2013.10.09 Measurement Categories Surface Properties Originating Instrument Stabilized Platform (S-TABLE) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time North latitude degree_N lat East longitude degree_E lon Surface condition Pitch angle reported by tilt table degrees pitch ( time ) Surface condition Roll angle reported by tilt table degrees roll ( time )

420

NCEM National Center for Electron Microscopy: Microscopes and Facilities:  

NLE Websites -- All DOE Office Websites (Extended Search)

3010 In-Situ 3010 In-Situ AEME The 300 kV JEOL 3010 offers greater specimen penetration than 200kV instruments, with significantly improved spatial resolution and probe forming capabilities. The side-entry stage allows ±45° tilt and can be operated with piezo-drift compensation. A flexible condenser system permits CBED, LACBED, and imaging with hollow cone and Koehler illumination. In addition to a standard film camera, a Gatan Orius CCD, and a Gatan 622 intensified TV camera and VCR are available for recording experiments at video rates. Specific capabilities include: high-resolution imaging at 2.1Å and ±40° tilt during simultaneous heating; very-high-resolution imaging at 1.7 Å and ±10° tilt during simultaneous heating; and high magnification Lorentz and Foucault imaging of magnetic samples. Various

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

CM30T TEM CM30T TEM Instrument capabilities: Instrument specifications: Accelerating voltages: 100-300 kV LaB6 emitter Resolution (at 300 kV): ~ 0.25 nm point; ~ 0.14 nm line Minimum probe size: ~ 9 nm Operating modes: CTEM, CBED, SAED, light element XEDS CCD camera: 1 Mp, 14 bits, AVI capture possible at 15 fps Specimen holders: Double Tilt (+/- 60 degrees alpha, +/- 30 degrees beta): with Be cup for XEDS liquid nitrogen cooled (96 K) with Be cup heating (1270 K) Tilt/rotate (+/- 60 degrees alpha, rotation 360 degrees) Single Tilt (+/- 60 degrees alpha) Typical experiments (examples): Quantitative XEDS Morphological and diffraction contrast studies of defects In situ heating & cooling studies Electron crystallography Weak beam studies of defects This page can be downloaded here as an Adobe PDF file.

422

File:SWERA-155.pdf | Open Energy Information  

Open Energy Info (EERE)

Solar: monthly average latitude tilt map at 40km resolution for Cuba from NREL Solar: monthly average latitude tilt map at 40km resolution for Cuba from NREL Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 1.19 MB, MIME type: application/pdf) Title A map depicting model estimates of monthly average daily total radiation using inputs derived from satellite and surface observations of cloud cover, Description Solar: monthly average latitude tilt map at 40km resolution for Cuba from NREL Sources National Renewable Energy Laboratory Related Technologies Solar Creation Date 2003-12-11 Extent International Countries Cuba UN Region Caribbean External links http://swera.unep.net/index.php?id=35&idx=155 File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

423

Optimization of spin polarization in the HERA electron ring using beam-based alignment procedures  

SciTech Connect

The maximum degree of electron spin polarization in a real storage ring is mainly limited by the tilt of the equilibrium polarization direction {ital n}{searrow}{sub 0} with respect to the direction of the main bending fields. The tilt is mainly caused by random vertical closed orbit kicks introduced by nonzero vertical offsets inside the quadrupoles. Methods for minimizing the average tilt of {ital n}{searrow}{sub 0} are discussed and a correction algorithm is introduced which makes use of the known correlations between transverse offsets of quadrupoles and adjacent beam position monitors. The correlation can be established by a beam-based alignment technique. The results of first measurements are presented. {copyright} {ital 1995 American Institute of Physics.}

Boege, M.; Brinkmann, R. [Deutsches Elektronen-Synchroton DESY, Notkestr. 85, D-22603 Hamburg (Germany)

1995-09-01T23:59:59.000Z

424

Photovoltaic module mounting system  

DOE Patents (OSTI)

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

Miros, Robert H. J.; Mittan, Margaret Birmingham; Seery, Martin N; Holland, Rodney H

2012-09-18T23:59:59.000Z

425

Photovoltaic module mounting system  

DOE Patents (OSTI)

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that grip the edge of the typically glass substrate. The panel mounting clamps are then held in place by tilt brackets and/or mid-link brackets that provide fixation for the clamps and align the solar panels at a tilt to the horizontal mounting surface. The tilt brackets are held in place atop the flexible feet and connected link members thus creating a complete mounting structure.

Miros, Robert H. J. (Fairfax, CA); Mittan, Margaret Birmingham (Oakland, CA); Seery, Martin N. (San Rafael, CA); Holland, Rodney H. (Novato, CA)

2012-04-17T23:59:59.000Z

426

Measurement of two-dimensional small angle deviation with a prism interferometer  

SciTech Connect

A new technique for the measurement of two-dimensional small angular deviation is presented. A compound prism, which effectively produces a combination of two right-angled prisms in orthogonal directions, and plane reference surfaces have been utilized for the measurement of the orthogonal components of the angular tilt of an incident plane wavefront. Each orthogonal component of the angular tilt is separately measured from the angular rotation of the resultant wedge fringes between two plane wavefronts generated due to splitting of the incident plane wavefront by the corresponding set of right-angled prism and plane reference surface. The technique is shown to have high sensitivity for the measurement of small angle deviation. A monolithic prism interferometer, which is practically insensitive to vibration, is also proposed. Results obtained for the measurement of a known tilt angle are presented.

Chatterjee, Sanjib; Kumar, Y. Pavan

2008-09-20T23:59:59.000Z

427

Feasibility Study of Solar Photovoltaics on Landfills in Puerto Rico (Second Study)  

SciTech Connect

This report presents the results of an assessment of the technical and economic feasibility of deploying a solar photovoltaics (PV) system on landfill sites in Puerto Rico. The purpose of this report is to assess the landfills with the highest potential for possible solar PV installation and estimate cost, performance, and site impacts of three different PV options: crystalline silicon (fixed tilt), crystalline silicon (single-axis tracking), and thin film (fixed tilt). The report outlines financing options that could assist in the implementation of a system. According to the site production calculations, the most cost-effective system in terms of return on investment is the thin-film fixed-tilt technology. The report recommends financing options that could assist in the implementation of such a system. The landfills and sites considered in this report were all determined feasible areas in which to implement solar PV systems.

Salasovich, J.; Mosey, G.

2011-08-01T23:59:59.000Z

428

contours | OpenEI  

Open Energy Info (EERE)

contours contours Dataset Summary Description (Abstract): Annual and seasonal mean of Latitude Tilt Solar Radiation in kWh/m2/day based on data from 1995 to 2002 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders Source INPE (National Institute for Spatial Research) and LABSOLAR (Laboratory of Solar Energy/Federal University of Santa Catarina) - Brazil Date Released August 11th, 2005 (9 years ago) Date Updated November 07th, 2007 (7 years ago) Keywords Brazil contours GEF GIS INPE LABSOLAR latitude tilt solar SWERA TILT UNEP Data application/zip icon Download Data (zip, 2.4 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency

429

Electron Microscopy Center  

NLE Websites -- All DOE Office Websites (Extended Search)

FEI Tecnai F20ST TEM/STEM FEI Tecnai F20ST TEM/STEM Instrument capabilities: Instrument specifications: Accelerating voltages: 80-200 kV Schottky FEG emitter Resolution (at 200 kV): ~0.24 nm point; ~0.1 nm line; probe size ~0.2-1 nm Operating modes: CTEM, STEM (BF/ADF, HAADF), CBED, SAED, light element XEDS, EELS, spectrum imaging, energy-filtered imaging (EFI), Lorentz magnetic imaging (LMI), electron holographic imaging (EHI), other computationally-mediated modes. On-axis CCD camera: 16 Mp, 16 bits, 61x61 mm chip size. EMC-owned specimen holders: Double Tilt (+/- 40 degrees alpha, +/- 30 degrees beta): with Be cup for XEDS liquid nitrogen cooled (96 K) with Be cup heating (1270 K) In-plane magnetic field (tilt +/- 40 degrees alpha) Liquid He cooled (tilt +/- 40 degrees alpha, rotate 360 degrees)

430

Hydraulic-fracture growth in dipping anisotropic strata as viewed through the surface deformation field  

SciTech Connect

In 1983 and 1984 Oak Rdige National Laboratory conducted a series of precision ground deformation measurements before, during, and after the generation of several large hydraulic fractures in a dipping member of the Cambrian Conasauga Shale. Each fracture was produced by the injection of approximately 500,000 L of slurry on a single day. Injection depth was 300 m. Leveling surveys were run several days before and several days after the injections. An array of eight high-precision borehole tiltmeters monitored ground deformations continuously for a period of several weeks. Analysis of the leveling and the tilt measurements revealed surface uplifts as great as 25 mm and tilts of tens of microradians during each injection. Furthermore, partial recovery (subsidence) of the ground took place during the days following an injection, accompanied by shifts in the position of maximum resultant uplift. Interpretation of the tilt measurements is consistent with stable widening and extension of hydraulic fractures with subhorizontal orientations. Comparison of the measured tilt patterns with fracture orientations established from logging of observation wells suggests that shearing parallel to the fracture planes accompanied fracture dilation. This interpretation is supported by measured tilts and ground uplifts that were as much as 100 percent greater than those expected from fracture dilation alone. Models of elastically anisotropic overburden rock do not explain the measured tilt patterns in the absence of shear stresses in the fracture planes. This work represents the first large-scale hydraulic-fracturing experiment in which the possible effects of material anisotropy and fracture-parallel shears have been measured and interpreted.

Holzhausen, G.R.; Haase, C.S.; Stow, S.H.; Gazonas, G.

1985-01-01T23:59:59.000Z

431

A theoretical study on area compensation for non-directly-south-facing solar collectors  

Science Journals Connector (OSTI)

Solar energy integrated with the building is an important approach for the synchronous development of solar energy and architecture. The energy gain of the solar collector integrated with the pitched roof has been greatly influenced by the roof azimuth and tilted angle. Investment cost of the collectors is mainly decided by the size of the collector area. Accordingly, it is significant for solar building design to economically determinate the area compensation of the solar collector at different azimuth and tilted angles. Take Kunming and Beijing as examples, area compensation for the flat-plate tube-fin solar collector used in southern regions and the evacuated tube collector with cylindrical absorbers used in northern regions in China have been theoretically calculated. The results to some extent show that the daily horizontal solar radiation, ambient temperature, the azimuth and tilted angle of the collector integrated into the roof have an influence on the area compensation. The azimuth angle and tilted angle of the roof are the main factors that influence the A/A0, which is defined as the collector area ratio of the non-south-facing collectors to the south-facing ones with the optimal tilted angle. Comparative studies found that the range of A/A0 for the evacuated tube collector used in the northern regions is close to that for the flat-plate tube-fin solar collector used in the southern regions. When the pitched roof tilted angle ? ? [25°, 45°] and the azimuth angle ??? ? 30°, the collectors can intercept a lot of solar radiant-energy. Considering the economic situations of the ordinary consumers in China, the optimal area compensation A/A0 ? 1.30 is recommended in this paper.

Sheng-Xian Wei; Li Ming; Xi-Zheng Zhou

2007-01-01T23:59:59.000Z

432

Droplets on Inclined Plates: Local and Global Hysteresis of Pinned Capillary Surfaces  

E-Print Network (OSTI)

Local contact line pinning prevents droplets from rearranging to minimal global energy, and models for droplets without pinning cannot predict their shape. We show that experiments are much better described by a theory, developed herein, that does account for the constrained contact line motion, using as example droplets on tilted plates. We map out their shapes in suitable phase spaces. For 2D droplets, the critical point of maximum tilt depends on the hysteresis range and Bond number. In 3D, it also depends on the initial width, highlighting the importance of the deposition history.

Michiel Musterd; Volkert van Steijn; Chris R. Kleijn; Michiel T. Kreutzer

2014-07-27T23:59:59.000Z

433

Dipole trapped spheromak in a prolate flux conserver  

Science Journals Connector (OSTI)

This paper reports the observation and characterization of a spheromak formed in the Swarthmore Spheromak Experiment (SSX [M. R. Brown Phys. Plasmas6 1717 (1999)]) and trapped in a simple dipole magnetic field. The spheromak is studied in a prolate (tilt unstable) 0.4 m diameter 0.6 m length copper flux conserver in SSX. This plasma does not tilt despite the prolate flux conserver. The spheromak is characterized by a suite of magnetic probe arrays for magnetic structure B ( r t ) ion Doppler spectroscopy for T i and flow and interferometry for n e . Three-dimensional magnetohydrodynamics simulations of this configuration verify its gross sta-bility.

M. R. Brown; C. D. Cothran; J. Fung; M. Chang; J. Horwitz; M. J. Schaffer; J. Leuer; E. V. Belova

2006-01-01T23:59:59.000Z

434

Tiltmeter leveling mechanism  

DOE Patents (OSTI)

A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to level the other sensor of the pair. The sensors are typically rotated up to about plus or minus 100 degrees. The device is effective for measuring tilts in a wide range of angles of inclination of wells and can be employed to level a platform containing a third sensor.

Hunter, Steven L. (Livermore, CA); Boro, Carl O. (Milpitas, CA); Farris, Alvis (late of Byron, CA)

2002-01-01T23:59:59.000Z

435

Multi-wavelength constraints on the inflationary consistency relation  

E-Print Network (OSTI)

We present the first attempt to use a combination of CMB, LIGO, and PPTA data to constrain both the tilt and the running of primordial tensor power spectrum through constraints on the gravitational wave energy density generated in the early universe. Combining measurements at different cosmological scales highlights how complementary data can be used to test the predictions of early universe models including the inflationary consistency relation. Current data prefers a slightly positive tilt ($n_t = 0.13^{+0.54}_{-0.75}$) and a negative running ($n_{t, {\\rm run}} assumptions regarding the UV cutoff ($k_{\\...

Meerburg, P Daniel; Hadzhiyska, Boryana; Meyers, Joel

2015-01-01T23:59:59.000Z

436

Solar radiation on variously oriented sloping surfaces  

SciTech Connect

Monthly average daily irradiation on surfaces tilted towards the equator and also inclined at various azimuth angles are estimated for two locations in Lesotho and the results are presented. The isotropic model suggested by Liu and Jordan (Trans. of Ashrae, 526, 1962) along with the modified equation of Klein (Solar Energy, 19, 4, 1977) are employed for the estimation purposes. Surface orientations are selected at three inclinations for six different azimuth angles. Conclusions are reached for optimum tilt and orientation for summer, winter and annual collection. Total annual radiation values are computed for all the slopes and orientations.

Gopinathan, K.K. (National Univ. of Lesotho, Roma (South Africa))

1991-01-01T23:59:59.000Z

437

File:SWERA-203.pdf | Open Energy Information  

Open Energy Info (EERE)

latitude tilt GIS data at 40km for Sri Lanka from NREL latitude tilt GIS data at 40km for Sri Lanka from NREL Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 861 KB, MIME type: application/pdf) Title Monthly Average Solar Resource for flat-plate collectors tilted at latitude for Sri Lanka. Description Solar: monthly and annual average latitude tilt GIS data at 40km for Sri Lanka from NREL Sources National Renewable Energy Laboratory Related Technologies Solar Creation Date 2004-07-01 Extent International Countries Sri Lanka UN Region Southern Asia External links http://swera.unep.net/index.php?id=35&idx=203 File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 12:25, 29 December 2010 Thumbnail for version as of 12:25, 29 December 2010 1,650 × 1,275 (861 KB) MapBot (Talk | contribs) Automated bot upload

438

Meetings  

Science Journals Connector (OSTI)

...Lloyd, "A tilting air-lubricated piston gauge for pressures below 0.5" Hg...of boat and chair forms of cyclohexane ring systems"; S. M. Kupchan, "Chemistry...M~~B w. d A C 1" it, Direct Reading Flame Photometer...

1959-03-06T23:59:59.000Z

439

The Santa Cruz Eddy. Part II: Mechanisms of Formation CRISTINA L. ARCHER AND MARK Z. JACOBSON  

E-Print Network (OSTI)

greater vorticity, wind speed, horizontal and vertical extents, and lifetime than the second eddy thermal gradients at ground level. In all cases, vertical vorticity was still created by the tilting," with horizontal resolution of 5 km, 150 120 grid points, 29 vertical levels, and 15-s time step), which covers

440

Wind Resource Assessment Using SODAR at Cluttered Sites William LW Henson MSc*  

E-Print Network (OSTI)

. The UMass ART VT-1 SODAR measures wind speed and direction at multiple heights using the Doppler shift tilted (approximately 15 degrees) from vertical. Three sound beams are required to resolve the wind periods of approximately ten minutes to produce estimates of the mean wind- speed and wind

Massachusetts at Amherst, University of

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

VOL. 60, NO. 6 15 MARCH 2003J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 2003 American Meteorological Society 781  

E-Print Network (OSTI)

in the lower and middle troposphere. An MCV's tangential wind speed is of or- ders 1 and 10 m s 1 , its) tilting of horizontal vorticity by horizontally varying vertical wind, and (e) horizontal baroclinity ( , , ) is relative vorticity, v(u, ) is hori- zontal wind, w is vertical wind, f is the Coriolis pa- rameter, and Jxy

Knievel, Jason Clark

442

Stochastic simulation of cosmic ray modulation including a wavy heliospheric current sheet  

E-Print Network (OSTI)

ray transport in the vicinity of the heliospheric current sheet (HCS), and a new method to calculate-dimensional (axisymmetric) model of the heliospheric transport of galactic cosmic rays. The model is based on stochastic and the dominant streaming patterns of cosmic rays in the heliosphere for different solar polarities and HCS tilt

Usoskin, Ilya G.

443

Design of a Commercial Hybrid VTOL UAV System  

Science Journals Connector (OSTI)

For the last four decades Unmanned Air Vehicles (UAVs) have been extensively used for military operations that include tracking, surveillance, active engagement with weapons and airborne data acquisition. UAVs are also in demand commercially due to their ... Keywords: Hybrid UAV, Tilt Rotor, UAV Design, VTOL

Ugur Ozdemir, Yucel Orkut Aktas, Aslihan Vuruskan, Yasin Dereli, Ahmed Farabi Tarhan, Karaca Demirbag, Ahmet Erdem, Ganime Duygu Kalaycioglu, Ibrahim Ozkol, Gokhan Inalhan

2014-04-01T23:59:59.000Z

444

Review Sheet for First Exam, Ecology Spring 2011. Bring a # 2 lead pencil The goal of this exam is to test your understanding of the information and concepts presented in  

E-Print Network (OSTI)

's spherical surface by the sun and the tilt of the earth on its axis combine to produce predictable, topography, and parent mineral material · The geographic distribution of terrestrial biomes corresponds closely to variation in climate, especially prevailing temperature and precipitation Chapter 3. Life

Mitchell, Randall J.

445

Length Scale of Leidenfrost Ratchet Switches Droplet Directionality  

SciTech Connect

Arrays of tilted pillars with characteristic heights spanning from hundreds of nanometers to tens of micrometers were created using wafer level processing and used as Leidenfrost ratchets to control droplet directionality. Dynamic Leidenfrost droplets on the ratchets with nanoscale features were found to move in the direction of the pillar tilt while the opposite directionality was observed on the microscale ratchets. This remarkable switch in the droplet directionality can be explained by varying contributions from the two distinct mechanisms controlling droplet motion on Leidenfrost ratchets with nanoscale and microscale features. In particular, asymmetric wettability of dynamic Leidenfrost droplets upon initial impact appears to be the dominant mechanism determining their directionality on tilted nanoscale pillar arrays. By contrast, asymmetric wetting does not provide a strong enough driving force compared to the forces induced by asymmetric vapour flow on arrays of much taller tilted microscale pillars. Furthermore, asymmetric wetting plays a role only in the dynamic Leidenfrost regime, for instance when droplets repeatedly jump after their initial impact. The point of crossover between the two mechanisms coincides with the pillar heights comparable to the values of the thinnest vapor layers still capable of cushioning Leidenfrost droplets upon their initial impact. The proposed model of the length scale dependent interplay between the two mechanisms points to the previously unexplored ability to bias movement of dynamic Leidenfrost droplets and even switch their directionality.

Agapov, Rebecca L [ORNL; Boreyko, Jonathan B [ORNL; Briggs, Dayrl P [ORNL; Srijanto, Bernadeta R [ORNL; Retterer, Scott T [ORNL; Collier, Pat [ORNL; Lavrik, Nickolay V [ORNL

2014-01-01T23:59:59.000Z

446

An arbitrary high-order discontinuous Galerkin method for elastic waves on unstructured meshes - IV. Anisotropy  

Science Journals Connector (OSTI)

......the heterogeneous elastic anisotropic wave equation with arbitrary...coordinate system aligned with the anisotropic symmetry axis can be found...material (Mesaverde clay shale) given in [109 N m2...pattern for the case of a tilted anisotropic material. A vector plot illustrating......

Josep de la Puente; Martin Käser; Michael Dumbser; Heiner Igel

2007-06-01T23:59:59.000Z

447

ISOMETRIC VERSUS ELASTIC SURFBOARD INTERFACES FOR LOCOMOTION IN VIRTUAL REALITY  

E-Print Network (OSTI)

interface, which works in either tilt or balance mode. The system supports the comparison of isometric, we demonstrate the interface as well as the setup of a complete virtual reality system aimed motion base [2] and the Hawaii Surf Simulator. Because it is hard for people to yaw (rotate about the "up

Lindeman, Robert W.

448

Light Antennas in phototactic algae.  

Science Journals Connector (OSTI)

...intensity extending from 1011 to 10'5 quanta cm-2 s-I at 500 nm. This operating...second. If the membrane is tilted, the quantum flux becomes IA * cosG photons per second...photore- ceptor acts as the equivalent of a quantum dif- ference counter: it first counts...

K W Foster; R D Smyth

1980-12-01T23:59:59.000Z

449

OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY  

E-Print Network (OSTI)

OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Tilt Option Discussion Issues Van Graves Phone Conference Sept 22, 2004 #12;2 OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY orientation (as discussed in K. McDonald's 9Sept paper) Hg Drainage #12;4 OAK RIDGE NATIONAL LABORATORY U. S

McDonald, Kirk

450

Rotation Angle for the Optimum Tracking of One-Axis Trackers  

SciTech Connect

An equation for the rotation angle for optimum tracking of one-axis trackers is derived along with equations giving the relationships between the rotation angle and the surface tilt and azimuth angles. These equations are useful for improved modeling of the solar radiation available to a collector with tracking constraints and for determining the appropriate motor revolutions for optimum tracking.

Marion, W. F.; Dobos, A. P.

2013-07-01T23:59:59.000Z

451

Desert Geomorphology in the Arabian Peninsula  

Science Journals Connector (OSTI)

...differs from the type of interior basin called khabra, which has no...tilted toward the sedimentary basin now occupied by the Persian...mnamnlahah as saline flats or basins with centripetal drainage...The cores were from the Permian Supai formation. 24. This...

Donald August Holm

1960-11-11T23:59:59.000Z

452

THE DYNAMICS OF MAGNETIC FLUX TUBES IN THE SOLAR CONVECTION ZONE  

E-Print Network (OSTI)

of discrete tubes surrounded by eld-free gas. These models have been very successful in explaining many angle (relative to E-W) made by its poles (Zirin 1988, Hale et al. 1919). This angle, termed its tilt to the solar equator than the following pole. Binned active region data, from spot groups (Hale et al. 1919

California at Berkeley, University of

453

A novel X-ray diffractometer for studies of liquid-liquid interfaces  

Science Journals Connector (OSTI)

A dedicated liquid surface diffractometer employing a tilting double-crystal monochromator in Bragg geometry has been designed. This diffractometer allows reflectivity and grazing-incidence scattering measurements of an immobile mechanical completely decoupled liquid sample from 6.4 to 29.4 keV.

Murphy, B.M.

2013-11-29T23:59:59.000Z

454

SII Curriculum Model 5 Learning Goals: Students  

E-Print Network (OSTI)

: How our planet took form, and how its distance from our particular sun, tilt, rotation, temperature Science I : Origins natural history Nonrenewable resources; distribution of raw materials Geologic Systems oceans, rivers, streams, rain, ice, tides, winds, and currents distribute water and heat around

Zaferatos, Nicholas C.

455

Anantha Aiyyer Assistant Professor  

E-Print Network (OSTI)

energy from the Sun The rotation of the earth and its tilt lead to uneven distribution of incoming of temperature, winds, moisture...] Weather [Thunderstorms,hurricanes, heat waves, floods...] Climate and weather spatio-temporal scales. What drives weather? #12;4/13/2011 4 Temperature at Raleigh over 4 years 5 F 22 F

Parker, Matthew D. Brown

456

Model 4: Sustainability of Interdependent Systems Related disciplines Narrative Learning themes  

E-Print Network (OSTI)

particular sun, tilt, rotation, temperature, and large single moon created a laboratory for life. What makes, and currents distribute water and heat, Resource distribution and renewability; Water supply and quality; inter supply; pollution; non-native species; resource allocation and distribution, social well- being

Zaferatos, Nicholas C.

457

Form drag at Three Tree Point  

E-Print Network (OSTI)

form drag with bottom pressure sensors #12;Oscillatory dynamics tidal energy converted to internal waves, eddies and mixing no tidally averaged work done on system slack tide: background tilt flood & ebb Puget Sound, WA Point Three Tree Pressure sensors (PPODs) at Three Tree Point (TTP) PPODs #12;PPOD

Warner, Sally

458

Earth tides  

SciTech Connect

Nineteen papers on gravity, tilt, and strain tides are compiled into this volume. Detailed chapters cover the calculation of the tidal forces and of the Earth's response to them, as well as actual observations of earth tides. Partial Contents: On Earth tides. The tidal forces: Tidal Forces. New Computations of the Tide-Generating Potential. Corrected Tables of Tidal Harmonics. The Theory of Tidal Deformations. Body Tides on an Elliptical, Rotating, Elastic and Oceanless Earth, Deformation of the Earth by Surface Loads. Gravimetric Tidal Loading Computed from Integrated Green's Functions. Tidal Friction in the Solid Earth. Loading Tides Versus Body Tides. Lunar Tidal Acceleration from Earth Satellite Orbit Analysis. Observations: gravity. Tidal Gravity in Britain: Tidal Loading and the Spatial Distribution of the Marine Tide. Tidal Loading along a Profile Europe-East Africa-South Asia-Australia and the Pacific Ocean. Detailed Gravity-Tide Spectrum between One and Four Cycles per Day. Observations: tilt and strain. Cavity and Topographic Effects in Tilt and Strain Measurement. Observations of Local Elastic Effects on Earth Tide Tilts and Strains.

Harrison, J.C.

1984-01-01T23:59:59.000Z

459

FIELD VALIDATION OF THE CLEAN POWER ESTIMATOR'S OBSTRUCTION ANALYSIS ALGORITHM  

E-Print Network (OSTI)

to provide obstruction profiles when it is difficult to be at the solar collector location (e) obstruction analysis algorithm based on results produced by the Solar PathfinderTM (SPF). Results indicate tables for two configurations: horizontal and south-facing at 30o -tilt. These tables are used

Perez, Richard R.

460

XI. DIFFUSEGLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system  

E-Print Network (OSTI)

is measured on a horizontal surface and intensity on the tilted collector surface is calculated via a two39 XI. DIFFUSE­GLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system requires an accurate assessment of incident solar radiation. Ordinarily, solar radiation

Oregon, University of

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

HOUSING Extension Bulletin E-1761 (new) March,1984 COOPERATIVE EXTENSION SERVICE MICHIGAN STATE UNIVERSITY  

E-Print Network (OSTI)

Available The energy available on a solar collector surface de- pends on the time of day,the time of year latitude. The different curves represent various collector tilt angles measured from the horizontal of the collector so the sun's rays are perpendicular to the collector at solar noon. Reviewers Arlen Benteman

462

Optimization of solar flat collector inclination  

Science Journals Connector (OSTI)

Solar collectors need to be inclined at the optimum angle to maximize the receiving energy. In spite of many theoretical and experimental investigations on optimization of solar collector inclination, there is an inconsistency in presented results. In this paper, solar global radiation on a horizontal surface was estimated using a mathematical model and the results were compared with the recorded data from the Zahedan city meteorological station. Total received solar energy by a flat inclined collector was determined in a certain day, and searching for the angle which has the maximum incident energy was the general procedure in determination of daily optimum tilt angle. In case of operational limitation for daily tilt adjustment, this procedure is repeated for other specific period of time and monthly, seasonal, semi-annual and annual optimum tilt angles were determined. A MATLAB-based code is used to calculate the daily optimum tilt angle. The results were in good agreement with the obtained data of a new constructed device. Finally, in the case of stationary devices, some recommendations were presented with respect to their typical application.

Hamid Moghadam; Farshad Farshchi Tabrizi; Ashkan Zolfaghari Sharak

2011-01-01T23:59:59.000Z

463

Field Validation of the Clean Power Estimator's Obstruction Analysis Algorithm Richard Perez  

E-Print Network (OSTI)

for obstruction analysis #12;the solar collector location (e.g., on an inaccessible, not- yet-built roof). Once produced by the Solar PathfinderTM (SPF). Results indicate that the Estimator provides acceptable estimates tables for two configurations: horizontal and south-facing at 30o-tilt. These tables are used to generate

Perez, Richard R.

464

Type II Transformation -Callus Selection Media N6 2-0-0+3mg/L Bialaphos Solution Substance []stock/MW Final Add ()  

E-Print Network (OSTI)

Type II Transformation - Callus Selection Media N6 2-0-0+3mg/L Bialaphos Solution Substance []stock in hood. 1L=30 plates. Dry lids on in hood 3days or quick cool upside down, tilted on lid for 1-2 hours

Raizada, Manish N.

465

Type II Transformation -Regeneration 3 Media -1 Liter *If using baby jars, read main protocol for special notes. Remember to autoclave and cool baby  

E-Print Network (OSTI)

Type II Transformation - Regeneration 3 Media - 1 Liter *If using baby jars, read main protocol on sterilization. Dry plates lids-on in hood for 3 days or quick cool upside down, tilted on l lid for 1-2hours. Dry baby jars 3 days in hood, lids on. Package plates n sleeves. Store at room temperature. Use within

Raizada, Manish N.

466

Data protection in a swirl Security Seminar 2014: Privacy  

E-Print Network (OSTI)

- Tilburg Institute for Law, Technology, and Society International transfers The transfer of personal data of protection TILT - Tilburg Institute for Law, Technology, and Society International transfers User Cloud, and Society International transfers Cloud computing: The transfer of personal data is done in an automatic

Hoepman, Jaap-Henk

467

Numerical Study of Global Stability of Oblate Field-Reversed Configurations  

SciTech Connect

Global stability of the oblate (small elongation, E < 1) Field-Reversed Configuration (FRC) has been investigated numerically using both three-dimensional magnetohydrodynamic (MHD) and hybrid (fluid electrons and kinetic ions) simulations. For every non-zero value of the toroidal mode number n, there are three MHD modes that must be stabilized. For n = 1, these are the interchange, the tilt and the radial shift; while for n > 1 these are the interchange and two co-interchange modes with different polarization. It is shown that the n = 1 tilt mode becomes an external mode when E < 1, and it can be effectively stabilized by close-fitting conducting shells, even in the small Larmor radii (MHD) regime. The tilt mode stability improves with increasing oblateness, however at suffciently small elongations the radial shift mode becomes more unstable than the tilt mode. The interchange mode stability is strongly profile dependent, and all n * 1 interchange modes can be stabilized for a class of pressure profile with separatrix beta larger than 0.035. Our results show that all three n = 1 modes can be stabilized in the MHD regime, but the stabilization of the n > 1 co-interchange modes still remains an open question.

E.V. Belova; S.C. Jardin; H. Ji; M. Yamada; R. Kulsrud

2000-10-27T23:59:59.000Z

468

Beyond location based: the spatially aware mobile phone  

Science Journals Connector (OSTI)

An increasing number of mobile phones feature embedded sensors such as GPS receivers, digital compasses or accelerometer-based tilt sensors. In this paper, we present an application framework for building spatially aware mobile applications – applications ... Keywords: geo-spatial information, location based services, personal spatial assistants, spatial information appliances

Rainer Simon; Peter Fröhlich; Hermann Anegg

2006-12-01T23:59:59.000Z

469

 

Science Journals Connector (OSTI)

...iron present as ferric hydrate as a result of decreasing...the keeping quality and behavior of rubberlatex, which...addition of stones and sand, and by tilting the...soil, clay loam and sand No. 80, show different...introducing each new phase of the subject by...

1927-01-01T23:59:59.000Z

470

The Integral Cluster Category  

Science Journals Connector (OSTI)

......but M does not lie in the fundamental domain as Hom D(RQ)(M...per(gamma) lies in the fundamental domain. Proof. We have as...So let us suppose that GM does not vanish. As GM is a lattice...Origin. Relevance. Future. Handbook of Tilting Theory (2007......

Bernhard Keller; Sarah Scherotzke

2012-01-01T23:59:59.000Z

471

Determination of linear optics functions from TBT data  

SciTech Connect

A method for evaluation of coupled optics functions, detection of strong perturbing elements, determination of BPM calibration errors and tilts using turn-by-turn (TBT) data is presented as well as the new version of the Hamiltonian perturbation theory of betatron oscillations the method is based upon. An example of application of the considered method to the Tevatron is given.

Alexahin, Y.; Gianfelice-Wendt, E.; /Fermilab

2006-05-01T23:59:59.000Z

472

NOVEMBER 2003 2705J O R G E N S E N E T A L . Variations Associated with Cores and Gaps of a Pacific Narrow Cold Frontal Rainband  

E-Print Network (OSTI)

Experiment. Airborne Doppler radar data obtained while the frontal system was well offshore indicated ends of the cores and just north of the gaps, the wind shear weakened with less intense updrafts that tilted upshear and contained a broader band of rainfall. Simulations using the nonhydrostatic nested grid

Pu, Zhaoxia

473

Electrochemical hydrogenation of aromatic compounds chemisorbed at polycrystalline and single-crystal Pd surfaces  

E-Print Network (OSTI)

, electrochemistry (EC), and electrochemical mass spectrometry (EC-MS). H2Q was found to form a slightly tilted flat-oriented quinone (Q) adlayer, when adsorbed from low concentrations; when chemisorbed from high concentrations, an edgewise-oriented H2Q adlayer...

Sanabria-Chinchilla, Jean

2009-06-02T23:59:59.000Z

474

Dipole trapped spheromak in a prolate flux conserver M. R. Brown,a  

E-Print Network (OSTI)

Dipole trapped spheromak in a prolate flux conserver M. R. Brown,a C. D. Cothran, J. Fung, M. Chang reports the observation and characterization of a spheromak formed in the Swarthmore Spheromak Experiment. The spheromak is studied in a prolate tilt unstable 0.4 m diameter, 0.6 m length copper flux conserver in SSX

Brown, Michael R.

475

Tectonophysics, sous presse (2012). DOI :10.1016/j.tecto.2012.01.010 Structure and evolution of the Demerara Plateau, offshore French Guiana  

E-Print Network (OSTI)

of the Demerara Plateau, offshore French Guiana : rifting, tectonic inversion and post-rift tilting at transform plateau, offshore French Guiana, from the analysis of geophysical data collected during GUYAPLAC cruise in this paper a new data set of seismic reflection lines on the eastern part of the Demerara Plateau, offshore

Paris-Sud XI, Université de

476

Tectonophysics, 591, p. 16-29 (2013). DOI :10.1016/j.tecto.2012.01.010 Structure and evolution of the Demerara Plateau, offshore French Guiana  

E-Print Network (OSTI)

of the Demerara Plateau, offshore French Guiana : rifting, tectonic inversion and post-rift tilting at transform plateau, offshore French Guiana, from the analysis of geophysical data collected during GUYAPLAC cruise of the Demerara Plateau, offshore French Guiana (Figure 1). The data were collected during GUYAPLAC cruise

Boyer, Edmond

477

Reducing magnetic field induced noise in broad-band seismic recordings  

Science Journals Connector (OSTI)

......horizontal components are significantly disturbed by tilts due to cars passing above, the vertical component's signal can easily...Streckeisen kindly provided a replacement coil to set the formerly defective STS-1V SN 1828 up for the experiment. Gabi Laske, Luis......

Thomas Forbriger

2007-04-01T23:59:59.000Z

478

The combined effects of beta-shear and environmental shear on a dry tropical cyclone in a numerical model  

E-Print Network (OSTI)

wind balance is analyzed in this study (Mallen et al. 2005). The vortex is generated from a number, FL 1. INTRODUCTION High values of vertical wind shear have been shown to inhibit tropical cyclone (TC have demonstrated that shear generates a tilt in TC core, resulting in persistent wavenumber-1

Nolan, David S.

479

Past, present and future experiments on muscle  

Science Journals Connector (OSTI)

...of the tilting cross- bridge model. Thus either that...future experiments on muscle H. E. Huxley 541 Phil...Hanson, J. & Huxley, H. E. 1955 Structural basis...Haselgrove, J. C. & Huxley, H. E. 1973 X-ray evidence for radial cross-bridge movement and for the sliding...

2000-01-01T23:59:59.000Z

480

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 6520  

E-Print Network (OSTI)

, minimum energy loss, low Reynolds number, optimum propeller/rotor blades, passively adaptive blades, long concept is inapplicable for small-sized rotor (blade ~3mm of thickness) due to its complexity-Marc Design of Optimum Torsionally Flexible PropRotors for Tilt-Body MAVs. (2012) Applied Mechanics

Mailhes, Corinne

Note: This page contains sample records for the topic "insolation latitutde tilt" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

To cite this document: Mohd-Zawawi, Fazila and Prothin, Sebastien and Lv, Peng and Benard, Emmanuel and Moschetta, Jean-Marc and Morlier, Joseph Study of a Flexible  

E-Print Network (OSTI)

capable of providing a predictive and reliable data in blade geometry and performance for rotor modes. 1 blade twist control method for conventional proprotor of tilt-rotor aircraft using extension twist in fatigue performance and damage tolerance of the blade. Additionally, the difference in rotor speeds

Mailhes, Corinne

482

Compensation of ac Stark shifts in optical magnetometry RID B-9041-2008 RID A-1272-2007  

E-Print Network (OSTI)

the cell with its axis tilted 45? with respect to the first one. Photodiodes D1 and D2 collect the light from both channels of the polarizer, allowing simultaneous measurement of the FIG. 3. ~a! Measured rotation angle fAC for elliptical polarization...

Novikova, I.; Matsko, A. B.; Velichansky, V. L.; Scully, Marlan O.; Welch, George R.

2001-01-01T23:59:59.000Z

483

Atomic-resolution characterization of interface structure and chemistry in the STEM  

SciTech Connect

Combination of Z-contrast imaging and EELS (electron energy loss spectroscopy) allows the local structure and chemistry of interfaces to be determined on the atomic scale. In this paper, these two complementary techniques are used to analyze the structure and chemistry of a nominally 25 degree [100] symmetric tilt boundary in an electroceramic SrTiO{sub 3} bicrystal.

Browning, N.D.; McGibbon, M.M.; McGibbon, A.J.; Chisholm, M.F.; Pennycook, S.J. [Oak Ridge National Lab., TN (United States); Ravikumar, V.; Dravid, V.P. [Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering

1994-03-01T23:59:59.000Z

484

Kinetic simulations of the formation and stability of the field-reversed configuration  

SciTech Connect

The Field-Reversed Configuration (FRC) is a high-beta compact toroidal plasma confined primarily by poloidal fields. In the FRC the external field is reversed on axis by the diamagnetic current carried by thermal plasma particles. A three-dimensional, hybrid, particle-in-cell (zero-inertia fluid electrons, and kinetic ions), code FLAME, previously used to study ion rings [Yu. A. Omelchenko and R. N. Sudan, J. Comp. Phys. 133, 146 (1997)], is applied to investigate FRC formation and tilt instability. Axisymmetric FRC equilibria are obtained by simulating the standard experimental reversed theta-pinch technique. These are used to study the nonlinear tilt mode in the ''kinetic'' and ''fluid-like'' cases characterized by ''small'' ({approx}3) and ''large'' ({approx}12) ratios of the characteristic radial plasma size to the mean ion gyro-radius, respectively. The formation simulations have revealed the presence of a substantial toroidal (azimuthal) magnetic field inside the separatrix, generated due to the stretching of the poloidal field by a sheared toroidal electron flow. This is shown to be an important tilt-stabilizing effect in both cases. On the other hand, the tilt mode stabilization by finite Larmor radius effects has been found relatively insignificant for the chosen equilibria. (c) 2000 American Institute of Physics.

Omelchenko, Yu. A. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)] [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

2000-05-01T23:59:59.000Z

485

Dual-Doppler analysis of the 17 June 1997 bow echo over southeast Texas  

E-Print Network (OSTI)

not shown in conceptual models of bow echoes however is a distinct, smaller-scale, cyclonic vortex present along the northern front edge of the bow echo. This vortex seems to have formed from the tilting and subsequent stretching of vorticity generated...

Moncla, Kerry Louis

2012-06-07T23:59:59.000Z

486

Library Protocol Safety and Security  

E-Print Network (OSTI)

Library Protocol Safety and Security · The library is open only to members of Brasenose; strangers are not to be admitted. · Eating, drinking (with the exception of water) and smoking are strictly forbidden. · Library the library. · Lampshades must not be tilted or have notes, postcards etc attached to them; any such items

Oxford, University of

487

Arrangement of Photosystem II and ATP Synthase in Chloroplast Membranes of Spinach and Pea  

Science Journals Connector (OSTI)

...convert sunlight into chemical energy and evolve oxygen is the thylakoid...by which stroma thylakoids wind helically around grana stacks...optimizing light harvesting and energy transfer under changing light...high-tilt stage, postcolumn energy filter, and sensitive 2k 2k...

Bertram Daum; Daniela Nicastro; Jotham Austin II; J. Richard McIntosh; Werner Kühlbrandt

2010-04-13T23:59:59.000Z

488

CIIAPTEH 111 TilE I.O(;rC OF IIYPOTIIES I S TEST IN(~  

E-Print Network (OSTI)

detect the .falsity of a scicflti fie theory hy checkiflg on the truth of its .consequences, for a theory l.;h1ch gives false predictions (aflllot he true, lIowever, we C;lnnot demonstrate tilt' truth veri fied, hecause even false thcories can have true consequences., Thus I~l' I~.ill need to understand

Koertge, Noretta

489

EVALUATION OF A PROTOTYPE SOLAR AWNING A prototype solar awning has been designed and installed on  

E-Print Network (OSTI)

and installed on a University of Oregon campus building. The solar awning is composed of a light shelfEVALUATION OF A PROTOTYPE SOLAR AWNING ABSTRACT A prototype solar awning has been designed with photovoltaic modules at- tached tilted 20° to the south. An interior light shelf and LED lights have been

Oregon, University of

490

Disentangling between low order telescope aberrations and segmentation errors using a Shack-Hartmann sensor  

E-Print Network (OSTI)

in the Southern Hemisphere Karl-Schwarzschild-Str. 2, Garching, Germany A BST R A C T The shape correction of the mirrors is a crucial operation to obtain diffraction limited images in actively controlled telescopes. If the mirror is not monolithic, the segmentation errors introduced by piston, tip and tilt of the segments

Liske, Jochen

491

Comparison of Design Loads for Turbines in Wake Torben J. Larsen, Helge Aa. Madsen, Gunner Larsen  

E-Print Network (OSTI)

DWM model Wind turbine wake velocity deficit wake meandering aeroelastic simulations wake added #12;Influence from wind direction: Driving torque #12;Influence from wind direction: Tower bottom tilt the turbine never experiences free flow direction at 3D spacing. · Tower loads increase with increased row

492

Determining Full Three-Dimensional Orientation of Single Anisotropic Nanoparticles by Differential Interference Contrast Microscopy  

SciTech Connect

Keeping track: By combining differential interference contrast (DIC) image pattern recognition with DIC polarization anisotropy, the exact full three-dimensional angular information of individual tilted gold nanorods positioned in the focal plane of the objective lens can be readily determined. The angular rotational modes and kinetics of individual in-focus gold nanorods can thus be resolved dynamically.

Xiao, Lehu; Ha, Ji Won; Wei, Lin; Wang, Gufeng; Fang, Ning

2012-06-26T23:59:59.000Z

493

Isolation of a Benzene Valence Isomer with One-Electron Phosphorus-Phosphorus Bonds  

Science Journals Connector (OSTI)

...center located at the center of a rectangular P4 framework, which is almost perpendicular to two three-membered rings (P4/P2C: 97 the NR2 groups are slightly tilted out of the P-P-C planes (0.164 a). The P-C and P-P bond lengths in the three-membered...

Yves Canac; Didier Bourissou; Antoine Baceiredo; Heinz Gornitzka; Wolfgang W. Schoeller; Guy Bertrand

1998-03-27T23:59:59.000Z

494

Hydrodynamics of three-dimensional stacked hexatic liquid crystals  

Science Journals Connector (OSTI)

The hydrodynamic equations for three-dimensional stacked hexatic liquid crystals, i.e., for hexatic-B and its tilted analogs, smectic-F and smectic-I, are presented. Differences and similarities to the hydrodynamics of smectic-A and smectic-C are discussed and the role of the additional variable characterizing the bond orientational order is elucidated.

H. Pleiner and H. R. Brand

1984-02-01T23:59:59.000Z

495

Preparation of actinide metal targets using special casting techniques  

Science Journals Connector (OSTI)

Various casting techniques and mold design have been evaluated at Rocky Flats for preparing actinide metal targets. A tilt-pour casting technique is used for targets > 0.040 in. thick, and an injection casting technique has been developed for targets neptunium, and uranium metal ingots and disks ranging from 0.005–0.600 in. thickness have been cast.

W.V. Conner

1972-01-01T23:59:59.000Z

496

Earth science: Radon and rock deformation  

Science Journals Connector (OSTI)

... crustal deformation. This ‘unproven’ category includes the well-documented precursory decrease and increase of radon concentration before the 1978 Izu-Oshima earthquake in Japan (Fig. 1), as well ... local electric field. Trique et al. now report that various phenomena — bursts of radon gas, changes of electric potential, and departures of ground tilt from that predicted on ...

Evelyn Roeloffs

1999-05-13T23:59:59.000Z

497

The Astrophysical Journal, 762:98 (8pp), 2013 January 10 doi:10.1088/0004-637X/762/2/98 C 2013. The American Astronomical Society. All rights reserved. Printed in the U.S.A.  

E-Print Network (OSTI)

likely has an inclined orbital plane. The tilted disk is subject to the Lense­Thirring torque, which a Blandford­Znajek jet collimated by a wind launched near the Bardeen­Petterson radius. Through simulations configurations. From the data we infer that the inclination angle of the initial stellar orbit is in the range

Zhang, Bing

498

Sunlight, Clouds, and Climate Charlie Zender  

E-Print Network (OSTI)

of temperature, rainfall, wind... ­ Averages taken over 1000's of miles, many years ­ Climate is intrinsically (Axial tilt): 41 ka cycle ­ Angle of inclination cycles from 22.1­24.5 ­ Angle is 23.5 now

Zender, Charles

499

Polya Dobreva, Monio Kartalev NUMERICAL MODELING OF THE MAGNETOSPHERE  

E-Print Network (OSTI)

main objective is a description of the magnetosphere. Regions, formed in solar wind flow around magnetic field model Problem formulation Dirichlet #12;Input parameters solar wind parameters ­ Dp, By, Bz(IMF) Dst index dipole inclination (tilt angle) The parameters are needed by Tsyganenko model

Mustakerov, Ivan

500

Journal of Computational Mathematics Vol.29, No.5, 2011, 501525.  

E-Print Network (OSTI)

images. Hence projections are available only for a limited range of tilt angles, which is knownJournal of Computational Mathematics Vol.29, No.5, 2011, 501­525. http://www.global-sci.org/jcm doi:10.4208/jcm.1106-m3302 INVERSION OF ELECTRON TOMOGRAPHY IMAGES USING L2 -GRADIENT FLOWS

Xu, Guo-liang